Compare commits

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1 Commits

Author SHA1 Message Date
Simon Suo acbefa2f61 wip
change

wip
2023-07-23 22:22:55 -07:00
393 changed files with 25766 additions and 17554 deletions
-11
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@@ -1,11 +0,0 @@
name: Bugfix
title: "Sweep: "
description: Write something like "We notice ... behavior when ... happens instead of ...""
labels: sweep
body:
- type: textarea
id: description
attributes:
label: Details
description: More details about the bug
placeholder: The bug might be in ... file
-11
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@@ -1,11 +0,0 @@
name: Feature Request
title: "Sweep: "
description: Write something like "Write an api endpoint that does "..." in the "..." file"
labels: sweep
body:
- type: textarea
id: description
attributes:
label: Details
description: More details for Sweep
placeholder: The new endpoint should use the ... class from ... file because it contains ... logic
-11
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@@ -1,11 +0,0 @@
name: Refactor
title: "Sweep: "
description: Write something like "Modify the ... api endpoint to use ... version and ... framework"
labels: sweep
body:
- type: textarea
id: description
attributes:
label: Details
description: More details for Sweep
placeholder: We are migrating this function to ... version because ...
@@ -1,25 +0,0 @@
name: Lint on push or pull request
on:
push:
branches:
- main
pull_request:
branches:
- main
jobs:
lint:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Install pnpm
run: npm install -g pnpm
- name: Install dependencies
run: pnpm install
- name: Run lint
run: pnpm run lint
-24
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@@ -1,24 +0,0 @@
name: Run Tests
on: [push, pull_request]
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Setup Node.js
uses: actions/setup-node@v2
with:
node-version: "18"
- name: Install dependencies
run: |
npm i -g pnpm
pnpm install
- name: Run tests
run: pnpm run test
+2 -4
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@@ -3,7 +3,6 @@
# dependencies
node_modules
.pnp
.pnpm-store
.pnp.js
# testing
@@ -36,7 +35,6 @@ yarn-error.log*
# vercel
.vercel
dist/
storage/
# vs code
.vscode/launch.json
dist/
-1
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@@ -2,4 +2,3 @@
. "$(dirname -- "$0")/_/husky.sh"
pnpm lint
npx lint-staged
+2 -4
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@@ -12,7 +12,7 @@ apps/simple is where the demo code lives
### Turborepo docs
You can checkout how Turborepo works using the default [README-turborepo.md](/README-turborepo.md)
You can checkout how Turborepo works using the built in [README-turborepo.md](README-turborepo.md)
## Getting Started
@@ -41,14 +41,12 @@ To run them, run
pnpm run test
```
To write new test cases write them in [packages/core/src/tests](/packages/core/src/tests)
To write new test cases write them in packages/core/src/tests
We use Jest https://jestjs.io/ to write our test cases. Jest comes with a bunch of built in assertions using the expect function: https://jestjs.io/docs/expect
### Demo applications
There is an existing ["simple"](/apps/simple/README.md) demos folder with mainly NodeJS scripts. Feel free to add additional demos to that folder. If you would like to try out your changes in the core package with a new demo, you need to run the build command in the README.
You can create new demo applications in the apps folder. Just run pnpm init in the folder after you create it to create its own package.json
### Installing packages
+13 -43
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@@ -17,10 +17,10 @@ LlamaIndex.TS requries Node v18 or higher. You can download it from https://node
In a new folder:
```bash
export OPENAI_API_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
export OPEN_AI_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
pnpm init
pnpm install typescript
pnpm exec tsc --init # if needed
pnpm exec tsc -init # if needed
pnpm install llamaindex
pnpm install @types/node
```
@@ -36,7 +36,7 @@ async function main() {
// Load essay from abramov.txt in Node
const essay = await fs.readFile(
"node_modules/llamaindex/examples/abramov.txt",
"utf-8",
"utf-8"
);
// Create Document object with essay
@@ -48,7 +48,7 @@ async function main() {
// Query the index
const queryEngine = index.asQueryEngine();
const response = await queryEngine.query(
"What did the author do in college?",
"What did the author do in college?"
);
// Output response
@@ -61,58 +61,28 @@ main();
Then you can run it using
```bash
pnpx ts-node example.ts
pnpm dlx ts-node example.ts
```
## Playground
Check out our NextJS playground at https://llama-playground.vercel.app/. The source is available at https://github.com/run-llama/ts-playground
## Core concepts for getting started:
- [Document](/packages/core/src/Node.ts): A document represents a text file, PDF file or other contiguous piece of data.
- [Document](packages/core/src/Node.ts): A document represents a text file, PDF file or other contiguous piece of data.
- [Node](/packages/core/src/Node.ts): The basic data building block. Most commonly, these are parts of the document split into manageable pieces that are small enough to be fed into an embedding model and LLM.
- [Node](packages/core/src/Node.ts): The basic data building block. Most commonly, these are parts of the document split into manageable pieces that are small enough to be fed into an embedding model and LLM.
- [Embedding](/packages/core/src/Embedding.ts): Embeddings are sets of floating point numbers which represent the data in a Node. By comparing the similarity of embeddings, we can derive an understanding of the similarity of two pieces of data. One use case is to compare the embedding of a question with the embeddings of our Nodes to see which Nodes may contain the data needed to answer that quesiton.
- [Embedding](packages/core/src/Embedding.ts): Embeddings are sets of floating point numbers which represent the data in a Node. By comparing the similarity of embeddings, we can derive an understanding of the similarity of two pieces of data. One use case is to compare the embedding of a question with the embeddings of our Nodes to see which Nodes may contain the data needed to answer that quesiton.
- [Indices](/packages/core/src/indices/): Indices store the Nodes and the embeddings of those nodes. QueryEngines retrieve Nodes from these Indices using embedding similarity.
- [Indices](packages/core/src/indices/): Indices store the Nodes and the embeddings of those nodes. QueryEngines retrieve Nodes from these Indices using embedding similarity.
- [QueryEngine](/packages/core/src/QueryEngine.ts): Query engines are what generate the query you put in and give you back the result. Query engines generally combine a pre-built prompt with selected Nodes from your Index to give the LLM the context it needs to answer your query.
- [QueryEngine](packages/core/src/QueryEngine.ts): Query engines are what generate the query you put in and give you back the result. Query engines generally combine a pre-built prompt with selected Nodes from your Index to give the LLM the context it needs to answer your query.
- [ChatEngine](/packages/core/src/ChatEngine.ts): A ChatEngine helps you build a chatbot that will interact with your Indices.
- [ChatEngine](packages/core/src/ChatEngine.ts): A ChatEngine helps you build a chatbot that will interact with your Indices.
- [SimplePrompt](/packages/core/src/Prompt.ts): A simple standardized function call definition that takes in inputs and formats them in a template literal. SimplePrompts can be specialized using currying and combined using other SimplePrompt functions.
## Note: NextJS:
If you're using NextJS App Router, you'll need to use the NodeJS runtime (default) and add the follow config to your next.config.js to have it use imports/exports in the same way Node does.
```js
export const runtime = "nodejs"; // default
```
```js
// next.config.js
/** @type {import('next').NextConfig} */
const nextConfig = {
experimental: {
serverComponentsExternalPackages: ["pdf-parse"], // Puts pdf-parse in actual NodeJS mode with NextJS App Router
},
};
module.exports = nextConfig;
```
## Supported LLMs:
- OpenAI GPT-3.5-turbo and GPT-4
- Anthropic Claude Instant and Claude 2
- Llama2 Chat LLMs (70B, 13B, and 7B parameters)
- [SimplePrompt](packages/core/src/Prompt.ts): A simple standardized function call definition that takes in inputs and formats them in a template literal. SimplePrompts can be specialized using currying and combined using other SimplePrompt functions.
## Contributing:
We are in the very early days of LlamaIndex.TS. If youre interested in hacking on it with us check out our [contributing guide](/CONTRIBUTING.md)
We are in the very early days of LlamaIndex.TS. If youre interested in hacking on it with us check out our [contributing guide](CONTRIBUTING.md)
## Bugs? Questions?
+1 -1
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@@ -1,3 +1,3 @@
module.exports = {
presets: [require.resolve("@docusaurus/core/lib/babel/preset")],
presets: [require.resolve('@docusaurus/core/lib/babel/preset')],
};
-1
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@@ -1 +0,0 @@
api/
+2
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@@ -0,0 +1,2 @@
label: "API"
position: 6
@@ -0,0 +1,81 @@
---
id: "BaseEmbedding"
title: "Class: BaseEmbedding"
sidebar_label: "BaseEmbedding"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- **`BaseEmbedding`**
↳ [`OpenAIEmbedding`](OpenAIEmbedding.md)
## Constructors
### constructor
**new BaseEmbedding**()
## Methods
### getQueryEmbedding
`Abstract` **getQueryEmbedding**(`query`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:206](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L206)
___
### getTextEmbedding
`Abstract` **getTextEmbedding**(`text`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L205)
___
### similarity
**similarity**(`embedding1`, `embedding2`, `mode?`): `number`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](../enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
#### Defined in
[Embedding.ts:197](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L197)
+153
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@@ -0,0 +1,153 @@
---
id: "BaseIndex"
title: "Class: BaseIndex<T>"
sidebar_label: "BaseIndex"
sidebar_position: 0
custom_edit_url: null
---
Indexes are the data structure that we store our nodes and embeddings in so
they can be retrieved for our queries.
## Type parameters
| Name |
| :------ |
| `T` |
## Hierarchy
- **`BaseIndex`**
↳ [`ListIndex`](ListIndex.md)
↳ [`VectorStoreIndex`](VectorStoreIndex.md)
## Constructors
### constructor
**new BaseIndex**<`T`\>(`init`)
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`BaseIndexInit`](../interfaces/BaseIndexInit.md)<`T`\> |
#### Defined in
[indices/BaseIndex.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L104)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: `T`
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Defined in
[indices/BaseIndex.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L100)
## Methods
### asQueryEngine
`Abstract` **asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Defined in
[indices/BaseIndex.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L124)
___
### asRetriever
`Abstract` **asRetriever**(`options?`): [`BaseRetriever`](../interfaces/BaseRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `any` |
#### Returns
[`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[indices/BaseIndex.ts:117](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L117)
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@@ -0,0 +1,287 @@
---
id: "BaseNode"
title: "Class: BaseNode"
sidebar_label: "BaseNode"
sidebar_position: 0
custom_edit_url: null
---
Generic abstract class for retrievable nodes
## Hierarchy
- **`BaseNode`**
↳ [`TextNode`](TextNode.md)
## Constructors
### constructor
**new BaseNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`BaseNode`](BaseNode.md)\> |
#### Defined in
[Node.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L48)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L39)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L42)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L45)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L124)
___
### getContent
`Abstract` **getContent**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Defined in
[Node.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L54)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L116)
___
### getMetadataStr
`Abstract` **getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Defined in
[Node.ts:55](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L55)
___
### getType
`Abstract` **getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Defined in
[Node.ts:52](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L52)
___
### setContent
`Abstract` **setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `any` |
#### Returns
`void`
#### Defined in
[Node.ts:56](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L56)
@@ -0,0 +1,83 @@
---
id: "CallbackManager"
title: "Class: CallbackManager"
sidebar_label: "CallbackManager"
sidebar_position: 0
custom_edit_url: null
---
## Implements
- `CallbackManagerMethods`
## Constructors
### constructor
**new CallbackManager**(`handlers?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `handlers?` | `CallbackManagerMethods` |
#### Defined in
[callbacks/CallbackManager.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L68)
## Properties
### onLLMStream
`Optional` **onLLMStream**: (`params`: [`StreamCallbackResponse`](../interfaces/StreamCallbackResponse.md)) => `void` \| `Promise`<`void`\>
#### Type declaration
▸ (`params`): `void` \| `Promise`<`void`\>
##### Parameters
| Name | Type |
| :------ | :------ |
| `params` | [`StreamCallbackResponse`](../interfaces/StreamCallbackResponse.md) |
##### Returns
`void` \| `Promise`<`void`\>
#### Implementation of
CallbackManagerMethods.onLLMStream
#### Defined in
[callbacks/CallbackManager.ts:65](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L65)
___
### onRetrieve
`Optional` **onRetrieve**: (`params`: [`RetrievalCallbackResponse`](../interfaces/RetrievalCallbackResponse.md)) => `void` \| `Promise`<`void`\>
#### Type declaration
▸ (`params`): `void` \| `Promise`<`void`\>
##### Parameters
| Name | Type |
| :------ | :------ |
| `params` | [`RetrievalCallbackResponse`](../interfaces/RetrievalCallbackResponse.md) |
##### Returns
`void` \| `Promise`<`void`\>
#### Implementation of
CallbackManagerMethods.onRetrieve
#### Defined in
[callbacks/CallbackManager.ts:66](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L66)
@@ -0,0 +1,114 @@
---
id: "ChatGPTLLMPredictor"
title: "Class: ChatGPTLLMPredictor"
sidebar_label: "ChatGPTLLMPredictor"
sidebar_position: 0
custom_edit_url: null
---
ChatGPTLLMPredictor is a predictor that uses GPT.
## Implements
- [`BaseLLMPredictor`](../interfaces/BaseLLMPredictor.md)
## Constructors
### constructor
**new ChatGPTLLMPredictor**(`props?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `props?` | `Partial`<[`ChatGPTLLMPredictor`](ChatGPTLLMPredictor.md)\> |
#### Defined in
[LLMPredictor.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L26)
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](CallbackManager.md)
#### Defined in
[LLMPredictor.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L24)
___
### languageModel
**languageModel**: [`OpenAI`](OpenAI.md)
#### Defined in
[LLMPredictor.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L23)
___
### model
**model**: ``"gpt-3.5-turbo"`` \| ``"gpt-3.5-turbo-16k"`` \| ``"gpt-4"`` \| ``"gpt-4-32k"``
#### Defined in
[LLMPredictor.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L21)
___
### retryOnThrottling
• **retryOnThrottling**: `boolean`
#### Defined in
[LLMPredictor.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L22)
## Methods
### getLlmMetadata
▸ **getLlmMetadata**(): `Promise`<`void`\>
#### Returns
`Promise`<`void`\>
#### Implementation of
[BaseLLMPredictor](../interfaces/BaseLLMPredictor.md).[getLlmMetadata](../interfaces/BaseLLMPredictor.md#getllmmetadata)
#### Defined in
[LLMPredictor.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L45)
___
### predict
▸ **predict**(`prompt`, `input?`, `parentEvent?`, `logProgress?`): `Promise`<`string`\>
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `prompt` | `string` \| [`SimplePrompt`](../modules.md#simpleprompt) | `undefined` |
| `input?` | `Record`<`string`, `string`\> | `undefined` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | `undefined` |
| `logProgress` | `boolean` | `false` |
#### Returns
`Promise`<`string`\>
#### Implementation of
[BaseLLMPredictor](../interfaces/BaseLLMPredictor.md).[predict](../interfaces/BaseLLMPredictor.md#predict)
#### Defined in
[LLMPredictor.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L49)
@@ -0,0 +1,106 @@
---
id: "CompactAndRefine"
title: "Class: CompactAndRefine"
sidebar_label: "CompactAndRefine"
sidebar_position: 0
custom_edit_url: null
---
CompactAndRefine is a slight variation of Refine that first compacts the text chunks into the smallest possible number of chunks.
## Hierarchy
- [`Refine`](Refine.md)
**`CompactAndRefine`**
## Constructors
### constructor
**new CompactAndRefine**(`serviceContext`, `textQATemplate?`, `refineTemplate?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `textQATemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `refineTemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
#### Inherited from
[Refine](Refine.md).[constructor](Refine.md#constructor)
#### Defined in
[ResponseSynthesizer.ts:78](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L78)
## Properties
### refineTemplate
**refineTemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Inherited from
[Refine](Refine.md).[refineTemplate](Refine.md#refinetemplate)
#### Defined in
[ResponseSynthesizer.ts:76](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L76)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[Refine](Refine.md).[serviceContext](Refine.md#servicecontext)
#### Defined in
[ResponseSynthesizer.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L74)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Inherited from
[Refine](Refine.md).[textQATemplate](Refine.md#textqatemplate)
#### Defined in
[ResponseSynthesizer.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L75)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`, `prevResponse?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
| `prevResponse?` | `string` |
#### Returns
`Promise`<`string`\>
#### Overrides
[Refine](Refine.md).[getResponse](Refine.md#getresponse)
#### Defined in
[ResponseSynthesizer.ts:181](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L181)
@@ -0,0 +1,148 @@
---
id: "CondenseQuestionChatEngine"
title: "Class: CondenseQuestionChatEngine"
sidebar_label: "CondenseQuestionChatEngine"
sidebar_position: 0
custom_edit_url: null
---
CondenseQuestionChatEngine is used in conjunction with a Index (for example VectorStoreIndex).
It does two steps on taking a user's chat message: first, it condenses the chat message
with the previous chat history into a question with more context.
Then, it queries the underlying Index using the new question with context and returns
the response.
CondenseQuestionChatEngine performs well when the input is primarily questions about the
underlying data. It performs less well when the chat messages are not questions about the
data, or are very referential to previous context.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new CondenseQuestionChatEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.chatHistory` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `init.condenseMessagePrompt?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `init.queryEngine` | [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md) |
| `init.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ChatEngine.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L75)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:71](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L71)
___
### condenseMessagePrompt
**condenseMessagePrompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ChatEngine.ts:73](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L73)
___
### queryEngine
**queryEngine**: [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Defined in
[ChatEngine.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L70)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ChatEngine.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L72)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L100)
___
### condenseQuestion
`Private` **condenseQuestion**(`chatHistory`, `question`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `chatHistory` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `question` | `string` |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Defined in
[ChatEngine.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L89)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:118](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L118)
@@ -0,0 +1,111 @@
---
id: "ContextChatEngine"
title: "Class: ContextChatEngine"
sidebar_label: "ContextChatEngine"
sidebar_position: 0
custom_edit_url: null
---
ContextChatEngine uses the Index to get the appropriate context for each query.
The context is stored in the system prompt, and the chat history is preserved,
ideally allowing the appropriate context to be surfaced for each query.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new ContextChatEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `init.chatModel?` | [`OpenAI`](OpenAI.md) |
| `init.retriever` | [`BaseRetriever`](../interfaces/BaseRetriever.md) |
#### Defined in
[ChatEngine.ts:133](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L133)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L131)
___
### chatModel
**chatModel**: [`OpenAI`](OpenAI.md)
#### Defined in
[ChatEngine.ts:130](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L130)
___
### retriever
**retriever**: [`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[ChatEngine.ts:129](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L129)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L144)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:182](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L182)
+496
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---
id: "Document"
title: "Class: Document"
sidebar_label: "Document"
sidebar_position: 0
custom_edit_url: null
---
A document is just a special text node with a docId.
## Hierarchy
- [`TextNode`](TextNode.md)
**`Document`**
## Constructors
### constructor
**new Document**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`Document`](Document.md)\> |
#### Overrides
[TextNode](TextNode.md).[constructor](TextNode.md#constructor)
#### Defined in
[Node.ts:216](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L216)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[TextNode](TextNode.md).[embedding](TextNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[endCharIdx](TextNode.md#endcharidx)
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedEmbedMetadataKeys](TextNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedLlmMetadataKeys](TextNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[hash](TextNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[TextNode](TextNode.md).[id_](TextNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[metadata](TextNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Inherited from
[TextNode](TextNode.md).[metadataSeparator](TextNode.md#metadataseparator)
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[relationships](TextNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[startCharIdx](TextNode.md#startcharidx)
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[text](TextNode.md#text)
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
TextNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L104)
___
### docId
`get` **docId**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:225](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L225)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
TextNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[TextNode](TextNode.md).[asRelatedNodeInfo](TextNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[generateHash](TextNode.md#generatehash)
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getContent](TextNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[TextNode](TextNode.md).[getEmbedding](TextNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getMetadataStr](TextNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Inherited from
[TextNode](TextNode.md).[getNodeInfo](TextNode.md#getnodeinfo)
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getText](TextNode.md#gettext)
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[TextNode](TextNode.md).[getType](TextNode.md#gettype)
#### Defined in
[Node.ts:221](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L221)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[setContent](TextNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L183)
@@ -0,0 +1,129 @@
---
id: "InMemoryFileSystem"
title: "Class: InMemoryFileSystem"
sidebar_label: "InMemoryFileSystem"
sidebar_position: 0
custom_edit_url: null
---
A filesystem implementation that stores files in memory.
## Implements
- [`GenericFileSystem`](../interfaces/GenericFileSystem.md)
## Constructors
### constructor
**new InMemoryFileSystem**()
## Properties
### files
`Private` **files**: `Record`<`string`, `any`\> = `{}`
#### Defined in
[storage/FileSystem.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L25)
## Methods
### access
**access**(`path`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[access](../interfaces/GenericFileSystem.md#access)
#### Defined in
[storage/FileSystem.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L38)
___
### mkdir
**mkdir**(`path`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[mkdir](../interfaces/GenericFileSystem.md#mkdir)
#### Defined in
[storage/FileSystem.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L44)
___
### readFile
**readFile**(`path`, `options?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`string`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[readFile](../interfaces/GenericFileSystem.md#readfile)
#### Defined in
[storage/FileSystem.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L31)
___
### writeFile
**writeFile**(`path`, `content`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `content` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[writeFile](../interfaces/GenericFileSystem.md#writefile)
#### Defined in
[storage/FileSystem.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L27)
+151
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@@ -0,0 +1,151 @@
---
id: "IndexDict"
title: "Class: IndexDict"
sidebar_label: "IndexDict"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- [`IndexStruct`](IndexStruct.md)
**`IndexDict`**
## Constructors
### constructor
**new IndexDict**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Inherited from
[IndexStruct](IndexStruct.md).[constructor](IndexStruct.md#constructor)
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### docStore
**docStore**: `Record`<`string`, [`Document`](Document.md)\> = `{}`
#### Defined in
[indices/BaseIndex.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L42)
___
### indexId
**indexId**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[indexId](IndexStruct.md#indexid)
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L17)
___
### nodesDict
**nodesDict**: `Record`<`string`, [`BaseNode`](BaseNode.md)\> = `{}`
#### Defined in
[indices/BaseIndex.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L41)
___
### summary
`Optional` **summary**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[summary](IndexStruct.md#summary)
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L18)
___
### type
**type**: `IndexStructType` = `IndexStructType.SIMPLE_DICT`
#### Defined in
[indices/BaseIndex.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L43)
## Methods
### addNode
**addNode**(`node`, `textId?`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `node` | [`BaseNode`](BaseNode.md) |
| `textId?` | `string` |
#### Returns
`void`
#### Defined in
[indices/BaseIndex.ts:52](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L52)
___
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Overrides
[IndexStruct](IndexStruct.md).[getSummary](IndexStruct.md#getsummary)
#### Defined in
[indices/BaseIndex.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L45)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Overrides
[IndexStruct](IndexStruct.md).[toJson](IndexStruct.md#tojson)
#### Defined in
[indices/BaseIndex.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L57)
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---
id: "IndexList"
title: "Class: IndexList"
sidebar_label: "IndexList"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- [`IndexStruct`](IndexStruct.md)
**`IndexList`**
## Constructors
### constructor
**new IndexList**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Inherited from
[IndexStruct](IndexStruct.md).[constructor](IndexStruct.md#constructor)
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### indexId
**indexId**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[indexId](IndexStruct.md#indexid)
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L17)
___
### nodes
**nodes**: `string`[] = `[]`
#### Defined in
[indices/BaseIndex.ts:67](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L67)
___
### summary
`Optional` **summary**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[summary](IndexStruct.md#summary)
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L18)
___
### type
**type**: `IndexStructType` = `IndexStructType.LIST`
#### Defined in
[indices/BaseIndex.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L68)
## Methods
### addNode
**addNode**(`node`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `node` | [`BaseNode`](BaseNode.md) |
#### Returns
`void`
#### Defined in
[indices/BaseIndex.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L70)
___
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Inherited from
[IndexStruct](IndexStruct.md).[getSummary](IndexStruct.md#getsummary)
#### Defined in
[indices/BaseIndex.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L32)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Overrides
[IndexStruct](IndexStruct.md).[toJson](IndexStruct.md#tojson)
#### Defined in
[indices/BaseIndex.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L74)
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---
id: "IndexNode"
title: "Class: IndexNode"
sidebar_label: "IndexNode"
sidebar_position: 0
custom_edit_url: null
---
TextNode is the default node type for text. Most common node type in LlamaIndex.TS
## Hierarchy
- [`TextNode`](TextNode.md)
**`IndexNode`**
## Constructors
### constructor
**new IndexNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`TextNode`](TextNode.md)\> |
#### Inherited from
[TextNode](TextNode.md).[constructor](TextNode.md#constructor)
#### Defined in
[Node.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L144)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[TextNode](TextNode.md).[embedding](TextNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[endCharIdx](TextNode.md#endcharidx)
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedEmbedMetadataKeys](TextNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedLlmMetadataKeys](TextNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[hash](TextNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[TextNode](TextNode.md).[id_](TextNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L38)
___
### indexId
**indexId**: `string` = `""`
#### Defined in
[Node.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L205)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[metadata](TextNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Inherited from
[TextNode](TextNode.md).[metadataSeparator](TextNode.md#metadataseparator)
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[relationships](TextNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[startCharIdx](TextNode.md#startcharidx)
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[text](TextNode.md#text)
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
TextNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
TextNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[TextNode](TextNode.md).[asRelatedNodeInfo](TextNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[generateHash](TextNode.md#generatehash)
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getContent](TextNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[TextNode](TextNode.md).[getEmbedding](TextNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getMetadataStr](TextNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Inherited from
[TextNode](TextNode.md).[getNodeInfo](TextNode.md#getnodeinfo)
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getText](TextNode.md#gettext)
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[TextNode](TextNode.md).[getType](TextNode.md#gettype)
#### Defined in
[Node.ts:207](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L207)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[setContent](TextNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L183)
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---
id: "IndexStruct"
title: "Class: IndexStruct"
sidebar_label: "IndexStruct"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- **`IndexStruct`**
↳ [`IndexDict`](IndexDict.md)
↳ [`IndexList`](IndexList.md)
## Constructors
### constructor
**new IndexStruct**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### indexId
**indexId**: `string`
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L17)
___
### summary
`Optional` **summary**: `string`
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L18)
## Methods
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Defined in
[indices/BaseIndex.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L32)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Defined in
[indices/BaseIndex.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L25)
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---
id: "LLMQuestionGenerator"
title: "Class: LLMQuestionGenerator"
sidebar_label: "LLMQuestionGenerator"
sidebar_position: 0
custom_edit_url: null
---
LLMQuestionGenerator uses the LLM to generate new questions for the LLM using tools and a user query.
## Implements
- [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md)
## Constructors
### constructor
**new LLMQuestionGenerator**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`LLMQuestionGenerator`](LLMQuestionGenerator.md)\> |
#### Defined in
[QuestionGenerator.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L34)
## Properties
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[QuestionGenerator.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L30)
___
### outputParser
**outputParser**: [`BaseOutputParser`](../interfaces/BaseOutputParser.md)<[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>\>
#### Defined in
[QuestionGenerator.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L32)
___
### prompt
**prompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[QuestionGenerator.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L31)
## Methods
### generate
**generate**(`tools`, `query`): `Promise`<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](../interfaces/ToolMetadata.md)[] |
| `query` | `string` |
#### Returns
`Promise`<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Implementation of
[BaseQuestionGenerator](../interfaces/BaseQuestionGenerator.md).[generate](../interfaces/BaseQuestionGenerator.md#generate)
#### Defined in
[QuestionGenerator.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L40)
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---
id: "ListIndex"
title: "Class: ListIndex"
sidebar_label: "ListIndex"
sidebar_position: 0
custom_edit_url: null
---
A ListIndex keeps nodes in a sequential list structure
## Hierarchy
- [`BaseIndex`](BaseIndex.md)<[`IndexList`](IndexList.md)\>
**`ListIndex`**
## Constructors
### constructor
**new ListIndex**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`BaseIndexInit`](../interfaces/BaseIndexInit.md)<[`IndexList`](IndexList.md)\> |
#### Overrides
[BaseIndex](BaseIndex.md).[constructor](BaseIndex.md#constructor)
#### Defined in
[indices/list/ListIndex.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L43)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[docStore](BaseIndex.md#docstore)
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStore](BaseIndex.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: [`IndexList`](IndexList.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStruct](BaseIndex.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[serviceContext](BaseIndex.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[storageContext](BaseIndex.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[vectorStore](BaseIndex.md#vectorstore)
#### Defined in
[indices/BaseIndex.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L100)
## Methods
### \_deleteNode
`Protected` **_deleteNode**(`nodeId`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodeId` | `string` |
#### Returns
`void`
#### Defined in
[indices/list/ListIndex.ts:186](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L186)
___
### \_insert
`Protected` **_insert**(`nodes`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
#### Returns
`void`
#### Defined in
[indices/list/ListIndex.ts:180](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L180)
___
### asQueryEngine
**asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asQueryEngine](BaseIndex.md#asqueryengine)
#### Defined in
[indices/list/ListIndex.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L144)
___
### asRetriever
**asRetriever**(`options?`): [`BaseRetriever`](../interfaces/BaseRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `Object` |
| `options.mode` | [`ListRetrieverMode`](../enums/ListRetrieverMode.md) |
#### Returns
[`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asRetriever](BaseIndex.md#asretriever)
#### Defined in
[indices/list/ListIndex.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L131)
___
### getRefDocInfo
**getRefDocInfo**(): `Promise`<`Record`<`string`, `RefDocInfo`\>\>
#### Returns
`Promise`<`Record`<`string`, `RefDocInfo`\>\>
#### Defined in
[indices/list/ListIndex.ts:192](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L192)
___
### \_buildIndexFromNodes
`Static` **_buildIndexFromNodes**(`nodes`, `docStore`, `indexStruct?`): `Promise`<[`IndexList`](IndexList.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
| `docStore` | `BaseDocumentStore` |
| `indexStruct?` | [`IndexList`](IndexList.md) |
#### Returns
`Promise`<[`IndexList`](IndexList.md)\>
#### Defined in
[indices/list/ListIndex.ts:165](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L165)
___
### fromDocuments
`Static` **fromDocuments**(`documents`, `args`): `Promise`<[`ListIndex`](ListIndex.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
| `args` | `Object` |
| `args.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `args.storageContext?` | [`StorageContext`](../interfaces/StorageContext.md) |
#### Returns
`Promise`<[`ListIndex`](ListIndex.md)\>
#### Defined in
[indices/list/ListIndex.ts:106](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L106)
___
### init
`Static` **init**(`options`): `Promise`<[`ListIndex`](ListIndex.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `options` | `ListIndexOptions` |
#### Returns
`Promise`<[`ListIndex`](ListIndex.md)\>
#### Defined in
[indices/list/ListIndex.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L47)
@@ -0,0 +1,137 @@
---
id: "ListIndexLLMRetriever"
title: "Class: ListIndexLLMRetriever"
sidebar_label: "ListIndexLLMRetriever"
sidebar_position: 0
custom_edit_url: null
---
LLM retriever for ListIndex.
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new ListIndexLLMRetriever**(`index`, `choiceSelectPrompt?`, `choiceBatchSize?`, `formatNodeBatchFn?`, `parseChoiceSelectAnswerFn?`, `serviceContext?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `index` | [`ListIndex`](ListIndex.md) | `undefined` |
| `choiceSelectPrompt?` | [`SimplePrompt`](../modules.md#simpleprompt) | `undefined` |
| `choiceBatchSize` | `number` | `10` |
| `formatNodeBatchFn?` | `NodeFormatterFunction` | `undefined` |
| `parseChoiceSelectAnswerFn?` | `ChoiceSelectParserFunction` | `undefined` |
| `serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) | `undefined` |
#### Defined in
[indices/list/ListIndexRetriever.ts:64](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L64)
## Properties
### choiceBatchSize
**choiceBatchSize**: `number`
#### Defined in
[indices/list/ListIndexRetriever.ts:59](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L59)
___
### choiceSelectPrompt
**choiceSelectPrompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[indices/list/ListIndexRetriever.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L58)
___
### formatNodeBatchFn
**formatNodeBatchFn**: `NodeFormatterFunction`
#### Defined in
[indices/list/ListIndexRetriever.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L60)
___
### index
**index**: [`ListIndex`](ListIndex.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L57)
___
### parseChoiceSelectAnswerFn
**parseChoiceSelectAnswerFn**: `ChoiceSelectParserFunction`
#### Defined in
[indices/list/ListIndexRetriever.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L61)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L62)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/list/ListIndexRetriever.ts:127](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L127)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/list/ListIndexRetriever.ts:81](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L81)
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---
id: "ListIndexRetriever"
title: "Class: ListIndexRetriever"
sidebar_label: "ListIndexRetriever"
sidebar_position: 0
custom_edit_url: null
---
Simple retriever for ListIndex that returns all nodes
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new ListIndexRetriever**(`index`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `index` | [`ListIndex`](ListIndex.md) |
#### Defined in
[indices/list/ListIndexRetriever.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L22)
## Properties
### index
**index**: [`ListIndex`](ListIndex.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L20)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/list/ListIndexRetriever.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L48)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/list/ListIndexRetriever.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndexRetriever.ts#L26)
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---
id: "LlamaDeuce"
title: "Class: LlamaDeuce"
sidebar_label: "LlamaDeuce"
sidebar_position: 0
custom_edit_url: null
---
Llama2 LLM implementation
## Implements
- [`LLM`](../interfaces/LLM.md)
## Constructors
### constructor
**new LlamaDeuce**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`LlamaDeuce`](LlamaDeuce.md)\> |
#### Defined in
[llm/LLM.ts:179](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L179)
## Properties
### maxTokens
`Optional` **maxTokens**: `number`
#### Defined in
[llm/LLM.ts:176](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L176)
___
### model
**model**: ``"Llama-2-70b-chat"`` \| ``"Llama-2-13b-chat"`` \| ``"Llama-2-7b-chat"``
#### Defined in
[llm/LLM.ts:174](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L174)
___
### replicateSession
• **replicateSession**: `ReplicateSession`
#### Defined in
[llm/LLM.ts:177](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L177)
___
### temperature
• **temperature**: `number`
#### Defined in
[llm/LLM.ts:175](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L175)
## Methods
### chat
▸ **chat**(`messages`, `_parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `_parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[chat](../interfaces/LLM.md#chat)
#### Defined in
[llm/LLM.ts:199](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L199)
___
### complete
▸ **complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[complete](../interfaces/LLM.md#complete)
#### Defined in
[llm/LLM.ts:224](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L224)
___
### mapMessageType
▸ **mapMessageType**(`messageType`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messageType` | `MessageType` |
#### Returns
`string`
#### Defined in
[llm/LLM.ts:186](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L186)
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---
id: "OpenAI"
title: "Class: OpenAI"
sidebar_label: "OpenAI"
sidebar_position: 0
custom_edit_url: null
---
OpenAI LLM implementation
## Implements
- [`LLM`](../interfaces/LLM.md)
## Constructors
### constructor
**new OpenAI**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`OpenAI`](OpenAI.md)\> |
#### Defined in
[llm/LLM.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L75)
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](CallbackManager.md)
#### Defined in
[llm/LLM.ts:73](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L73)
___
### maxRetries
**maxRetries**: `number`
#### Defined in
[llm/LLM.ts:71](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L71)
___
### maxTokens
`Optional` **maxTokens**: `number`
#### Defined in
[llm/LLM.ts:69](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L69)
___
### model
**model**: ``"gpt-3.5-turbo"`` \| ``"gpt-3.5-turbo-16k"`` \| ``"gpt-4"`` \| ``"gpt-4-32k"``
#### Defined in
[llm/LLM.ts:66](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L66)
___
### n
• **n**: `number` = `1`
#### Defined in
[llm/LLM.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L68)
___
### requestTimeout
• **requestTimeout**: ``null`` \| `number`
#### Defined in
[llm/LLM.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L72)
___
### session
• **session**: `OpenAISession`
#### Defined in
[llm/LLM.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L70)
___
### temperature
• **temperature**: `number`
#### Defined in
[llm/LLM.ts:67](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L67)
## Methods
### chat
▸ **chat**(`messages`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[chat](../interfaces/LLM.md#chat)
#### Defined in
[llm/LLM.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L102)
___
### complete
▸ **complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[complete](../interfaces/LLM.md#complete)
#### Defined in
[llm/LLM.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L144)
___
### mapMessageType
▸ **mapMessageType**(`messageType`): `ChatCompletionRequestMessageRoleEnum`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messageType` | `MessageType` |
#### Returns
`ChatCompletionRequestMessageRoleEnum`
#### Defined in
[llm/LLM.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L85)
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---
id: "OpenAIEmbedding"
title: "Class: OpenAIEmbedding"
sidebar_label: "OpenAIEmbedding"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- [`BaseEmbedding`](BaseEmbedding.md)
**`OpenAIEmbedding`**
## Constructors
### constructor
**new OpenAIEmbedding**()
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[constructor](BaseEmbedding.md#constructor)
#### Defined in
[Embedding.ts:217](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L217)
## Properties
### model
**model**: `TEXT_EMBED_ADA_002`
#### Defined in
[Embedding.ts:215](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L215)
___
### session
**session**: `OpenAISession`
#### Defined in
[Embedding.ts:214](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L214)
## Methods
### getOpenAIEmbedding
`Private` **getOpenAIEmbedding**(`input`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:224](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L224)
___
### getQueryEmbedding
**getQueryEmbedding**(`query`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[getQueryEmbedding](BaseEmbedding.md#getqueryembedding)
#### Defined in
[Embedding.ts:240](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L240)
___
### getTextEmbedding
**getTextEmbedding**(`text`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[getTextEmbedding](BaseEmbedding.md#gettextembedding)
#### Defined in
[Embedding.ts:236](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L236)
___
### similarity
**similarity**(`embedding1`, `embedding2`, `mode?`): `number`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](../enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
#### Inherited from
[BaseEmbedding](BaseEmbedding.md).[similarity](BaseEmbedding.md#similarity)
#### Defined in
[Embedding.ts:197](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L197)
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---
id: "PDFReader"
title: "Class: PDFReader"
sidebar_label: "PDFReader"
sidebar_position: 0
custom_edit_url: null
---
Read the text of a PDF
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new PDFReader**()
## Methods
### loadData
**loadData**(`file`, `fs?`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `file` | `string` | `undefined` |
| `fs` | [`GenericFileSystem`](../interfaces/GenericFileSystem.md) | `DEFAULT_FS` |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/PDFReader.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/readers/PDFReader.ts#L12)
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---
id: "Refine"
title: "Class: Refine"
sidebar_label: "Refine"
sidebar_position: 0
custom_edit_url: null
---
A response builder that uses the query to ask the LLM generate a better response using multiple text chunks.
## Hierarchy
- **`Refine`**
↳ [`CompactAndRefine`](CompactAndRefine.md)
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new Refine**(`serviceContext`, `textQATemplate?`, `refineTemplate?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `textQATemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `refineTemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
#### Defined in
[ResponseSynthesizer.ts:78](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L78)
## Properties
### refineTemplate
**refineTemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:76](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L76)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L74)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L75)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`, `prevResponse?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
| `prevResponse?` | `string` |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L88)
___
### giveResponseSingle
`Private` **giveResponseSingle**(`queryStr`, `textChunk`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `queryStr` | `string` |
| `textChunk` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[ResponseSynthesizer.ts:113](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L113)
___
### refineResponseSingle
`Private` **refineResponseSingle**(`response`, `queryStr`, `textChunk`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `response` | `string` |
| `queryStr` | `string` |
| `textChunk` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[ResponseSynthesizer.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L149)
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---
id: "Response"
title: "Class: Response"
sidebar_label: "Response"
sidebar_position: 0
custom_edit_url: null
---
Respone is the output of a LLM
## Constructors
### constructor
**new Response**(`response`, `sourceNodes?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `response` | `string` |
| `sourceNodes?` | [`BaseNode`](BaseNode.md)[] |
#### Defined in
[Response.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Response.ts#L10)
## Properties
### response
**response**: `string`
#### Defined in
[Response.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Response.ts#L7)
___
### sourceNodes
`Optional` **sourceNodes**: [`BaseNode`](BaseNode.md)[]
#### Defined in
[Response.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Response.ts#L8)
## Methods
### getFormattedSources
**getFormattedSources**(): `void`
#### Returns
`void`
#### Defined in
[Response.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Response.ts#L15)
___
### toString
**toString**(): `string`
#### Returns
`string`
#### Defined in
[Response.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Response.ts#L19)
@@ -0,0 +1,69 @@
---
id: "ResponseSynthesizer"
title: "Class: ResponseSynthesizer"
sidebar_label: "ResponseSynthesizer"
sidebar_position: 0
custom_edit_url: null
---
A ResponseSynthesizer is used to generate a response from a query and a list of nodes.
## Constructors
### constructor
**new ResponseSynthesizer**(`«destructured»?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `Object` |
|  `responseBuilder?` | `BaseResponseBuilder` |
|  `serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:285](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L285)
## Properties
### responseBuilder
**responseBuilder**: `BaseResponseBuilder`
#### Defined in
[ResponseSynthesizer.ts:282](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L282)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:283](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L283)
## Methods
### synthesize
**synthesize**(`query`, `nodes`, `parentEvent?`): `Promise`<[`Response`](Response.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `nodes` | [`NodeWithScore`](../interfaces/NodeWithScore.md)[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Defined in
[ResponseSynthesizer.ts:297](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L297)
@@ -0,0 +1,77 @@
---
id: "RetrieverQueryEngine"
title: "Class: RetrieverQueryEngine"
sidebar_label: "RetrieverQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
A query engine that uses a retriever to query an index and then synthesizes the response.
## Implements
- [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
## Constructors
### constructor
**new RetrieverQueryEngine**(`retriever`, `responseSynthesizer?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `retriever` | [`BaseRetriever`](../interfaces/BaseRetriever.md) |
| `responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
#### Defined in
[QueryEngine.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L34)
## Properties
### responseSynthesizer
**responseSynthesizer**: [`ResponseSynthesizer`](ResponseSynthesizer.md)
#### Defined in
[QueryEngine.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L32)
___
### retriever
**retriever**: [`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[QueryEngine.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L31)
## Methods
### query
**query**(`query`, `parentEvent?`): `Promise`<[`Response`](Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[BaseQueryEngine](../interfaces/BaseQueryEngine.md).[query](../interfaces/BaseQueryEngine.md#query)
#### Defined in
[QueryEngine.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L45)
@@ -0,0 +1,236 @@
---
id: "SentenceSplitter"
title: "Class: SentenceSplitter"
sidebar_label: "SentenceSplitter"
sidebar_position: 0
custom_edit_url: null
---
SentenceSplitter is our default text splitter that supports splitting into sentences, paragraphs, or fixed length chunks with overlap.
## Constructors
### constructor
**new SentenceSplitter**(`chunkSize?`, `chunkOverlap?`, `tokenizer?`, `tokenizerDecoder?`, `paragraphSeparator?`, `chunkingTokenizerFn?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `chunkSize` | `number` | `DEFAULT_CHUNK_SIZE` |
| `chunkOverlap` | `number` | `DEFAULT_CHUNK_OVERLAP` |
| `tokenizer` | `any` | `null` |
| `tokenizerDecoder` | `any` | `null` |
| `paragraphSeparator` | `string` | `"\n\n\n"` |
| `chunkingTokenizerFn` | `any` | `undefined` |
#### Defined in
[TextSplitter.ts:33](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L33)
## Properties
### chunkOverlap
`Private` **chunkOverlap**: `number`
#### Defined in
[TextSplitter.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L26)
___
### chunkSize
`Private` **chunkSize**: `number`
#### Defined in
[TextSplitter.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L25)
___
### chunkingTokenizerFn
`Private` **chunkingTokenizerFn**: `any`
#### Defined in
[TextSplitter.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L30)
___
### paragraphSeparator
`Private` **paragraphSeparator**: `string`
#### Defined in
[TextSplitter.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L29)
___
### tokenizer
`Private` **tokenizer**: `any`
#### Defined in
[TextSplitter.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L27)
___
### tokenizerDecoder
`Private` **tokenizerDecoder**: `any`
#### Defined in
[TextSplitter.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L28)
## Methods
### combineTextSplits
**combineTextSplits**(`newSentenceSplits`, `effectiveChunkSize`): `TextSplit`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `newSentenceSplits` | `SplitRep`[] |
| `effectiveChunkSize` | `number` |
#### Returns
`TextSplit`[]
#### Defined in
[TextSplitter.ts:153](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L153)
___
### getEffectiveChunkSize
`Private` **getEffectiveChunkSize**(`extraInfoStr?`): `number`
#### Parameters
| Name | Type |
| :------ | :------ |
| `extraInfoStr?` | `string` |
#### Returns
`number`
#### Defined in
[TextSplitter.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L72)
___
### getParagraphSplits
**getParagraphSplits**(`text`, `effectiveChunkSize?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `effectiveChunkSize?` | `number` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L89)
___
### getSentenceSplits
**getSentenceSplits**(`text`, `effectiveChunkSize?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `effectiveChunkSize?` | `number` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:115](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L115)
___
### processSentenceSplits
`Private` **processSentenceSplits**(`sentenceSplits`, `effectiveChunkSize`): `SplitRep`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `sentenceSplits` | `string`[] |
| `effectiveChunkSize` | `number` |
#### Returns
`SplitRep`[]
#### Defined in
[TextSplitter.ts:128](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L128)
___
### splitText
**splitText**(`text`, `extraInfoStr?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `extraInfoStr?` | `string` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:233](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L233)
___
### splitTextWithOverlaps
**splitTextWithOverlaps**(`text`, `extraInfoStr?`): `TextSplit`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `extraInfoStr?` | `string` |
#### Returns
`TextSplit`[]
#### Defined in
[TextSplitter.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/TextSplitter.ts#L205)
@@ -0,0 +1,96 @@
---
id: "SimpleChatEngine"
title: "Class: SimpleChatEngine"
sidebar_label: "SimpleChatEngine"
sidebar_position: 0
custom_edit_url: null
---
SimpleChatEngine is the simplest possible chat engine. Useful for using your own custom prompts.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new SimpleChatEngine**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`SimpleChatEngine`](SimpleChatEngine.md)\> |
#### Defined in
[ChatEngine.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L40)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:37](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L37)
___
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[ChatEngine.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L38)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L45)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L54)
@@ -0,0 +1,43 @@
---
id: "SimpleDirectoryReader"
title: "Class: SimpleDirectoryReader"
sidebar_label: "SimpleDirectoryReader"
sidebar_position: 0
custom_edit_url: null
---
Read all of the documents in a directory. Currently supports PDF and TXT files.
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new SimpleDirectoryReader**()
## Methods
### loadData
**loadData**(`«destructured»`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | [`SimpleDirectoryReaderLoadDataProps`](../modules.md#simpledirectoryreaderloaddataprops) |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/SimpleDirectoryReader.ts:37](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/readers/SimpleDirectoryReader.ts#L37)
@@ -0,0 +1,114 @@
---
id: "SimpleNodeParser"
title: "Class: SimpleNodeParser"
sidebar_label: "SimpleNodeParser"
sidebar_position: 0
custom_edit_url: null
---
SimpleNodeParser is the default NodeParser. It splits documents into TextNodes using a splitter, by default SentenceSplitter
## Implements
- [`NodeParser`](../interfaces/NodeParser.md)
## Constructors
### constructor
**new SimpleNodeParser**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Object` |
| `init.chunkOverlap?` | `number` |
| `init.chunkSize?` | `number` |
| `init.includeMetadata?` | `boolean` |
| `init.includePrevNextRel?` | `boolean` |
| `init.textSplitter?` | [`SentenceSplitter`](SentenceSplitter.md) |
#### Defined in
[NodeParser.ts:64](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L64)
## Properties
### includeMetadata
**includeMetadata**: `boolean`
#### Defined in
[NodeParser.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L61)
___
### includePrevNextRel
**includePrevNextRel**: `boolean`
#### Defined in
[NodeParser.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L62)
___
### textSplitter
**textSplitter**: [`SentenceSplitter`](SentenceSplitter.md)
#### Defined in
[NodeParser.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L60)
## Methods
### getNodesFromDocuments
**getNodesFromDocuments**(`documents`): [`TextNode`](TextNode.md)[]
Generate Node objects from documents
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
#### Returns
[`TextNode`](TextNode.md)[]
#### Implementation of
[NodeParser](../interfaces/NodeParser.md).[getNodesFromDocuments](../interfaces/NodeParser.md#getnodesfromdocuments)
#### Defined in
[NodeParser.ts:95](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L95)
___
### fromDefaults
`Static` **fromDefaults**(`init?`): [`SimpleNodeParser`](SimpleNodeParser.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Object` |
| `init.chunkOverlap?` | `number` |
| `init.chunkSize?` | `number` |
| `init.includeMetadata?` | `boolean` |
| `init.includePrevNextRel?` | `boolean` |
#### Returns
[`SimpleNodeParser`](SimpleNodeParser.md)
#### Defined in
[NodeParser.ts:82](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L82)
@@ -0,0 +1,75 @@
---
id: "SimpleResponseBuilder"
title: "Class: SimpleResponseBuilder"
sidebar_label: "SimpleResponseBuilder"
sidebar_position: 0
custom_edit_url: null
---
A response builder that just concatenates responses.
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new SimpleResponseBuilder**(`serviceContext`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L49)
## Properties
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[ResponseSynthesizer.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L46)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L47)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L54)
@@ -0,0 +1,67 @@
---
id: "SubQuestionOutputParser"
title: "Class: SubQuestionOutputParser"
sidebar_label: "SubQuestionOutputParser"
sidebar_position: 0
custom_edit_url: null
---
SubQuestionOutputParser is used to parse the output of the SubQuestionGenerator.
## Implements
- [`BaseOutputParser`](../interfaces/BaseOutputParser.md)<[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>\>
## Constructors
### constructor
**new SubQuestionOutputParser**()
## Methods
### format
**format**(`output`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`string`
#### Implementation of
[BaseOutputParser](../interfaces/BaseOutputParser.md).[format](../interfaces/BaseOutputParser.md#format)
#### Defined in
[OutputParser.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L97)
___
### parse
**parse**(`output`): [`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Implementation of
[BaseOutputParser](../interfaces/BaseOutputParser.md).[parse](../interfaces/BaseOutputParser.md#parse)
#### Defined in
[OutputParser.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L89)
@@ -0,0 +1,143 @@
---
id: "SubQuestionQueryEngine"
title: "Class: SubQuestionQueryEngine"
sidebar_label: "SubQuestionQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
SubQuestionQueryEngine decomposes a question into subquestions and then
## Implements
- [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
## Constructors
### constructor
**new SubQuestionQueryEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.queryEngineTools` | [`QueryEngineTool`](../interfaces/QueryEngineTool.md)[] |
| `init.questionGen` | [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md) |
| `init.responseSynthesizer` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
#### Defined in
[QueryEngine.ts:65](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L65)
## Properties
### metadatas
**metadatas**: [`ToolMetadata`](../interfaces/ToolMetadata.md)[]
#### Defined in
[QueryEngine.ts:63](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L63)
___
### queryEngines
**queryEngines**: `Record`<`string`, [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)\>
#### Defined in
[QueryEngine.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L62)
___
### questionGen
**questionGen**: [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md)
#### Defined in
[QueryEngine.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L61)
___
### responseSynthesizer
**responseSynthesizer**: [`ResponseSynthesizer`](ResponseSynthesizer.md)
#### Defined in
[QueryEngine.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L60)
## Methods
### query
**query**(`query`): `Promise`<[`Response`](Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[BaseQueryEngine](../interfaces/BaseQueryEngine.md).[query](../interfaces/BaseQueryEngine.md#query)
#### Defined in
[QueryEngine.ts:106](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L106)
___
### querySubQ
`Private` **querySubQ**(`subQ`, `parentEvent?`): `Promise`<``null`` \| [`NodeWithScore`](../interfaces/NodeWithScore.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `subQ` | [`SubQuestion`](../interfaces/SubQuestion.md) |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<``null`` \| [`NodeWithScore`](../interfaces/NodeWithScore.md)\>
#### Defined in
[QueryEngine.ts:134](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L134)
___
### fromDefaults
▸ `Static` **fromDefaults**(`init`): [`SubQuestionQueryEngine`](SubQuestionQueryEngine.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.queryEngineTools` | [`QueryEngineTool`](../interfaces/QueryEngineTool.md)[] |
| `init.questionGen?` | [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md) |
| `init.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
| `init.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Returns
[`SubQuestionQueryEngine`](SubQuestionQueryEngine.md)
#### Defined in
[QueryEngine.ts:82](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L82)
@@ -0,0 +1,44 @@
---
id: "TextFileReader"
title: "Class: TextFileReader"
sidebar_label: "TextFileReader"
sidebar_position: 0
custom_edit_url: null
---
Read a .txt file
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new TextFileReader**()
## Methods
### loadData
**loadData**(`file`, `fs?`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `file` | `string` |
| `fs` | [`CompleteFileSystem`](../modules.md#completefilesystem) |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/SimpleDirectoryReader.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/readers/SimpleDirectoryReader.ts#L12)
+458
View File
@@ -0,0 +1,458 @@
---
id: "TextNode"
title: "Class: TextNode"
sidebar_label: "TextNode"
sidebar_position: 0
custom_edit_url: null
---
TextNode is the default node type for text. Most common node type in LlamaIndex.TS
## Hierarchy
- [`BaseNode`](BaseNode.md)
**`TextNode`**
↳↳ [`IndexNode`](IndexNode.md)
↳↳ [`Document`](Document.md)
## Constructors
### constructor
**new TextNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`TextNode`](TextNode.md)\> |
#### Overrides
[BaseNode](BaseNode.md).[constructor](BaseNode.md#constructor)
#### Defined in
[Node.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L144)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[BaseNode](BaseNode.md).[embedding](BaseNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[BaseNode](BaseNode.md).[excludedEmbedMetadataKeys](BaseNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[BaseNode](BaseNode.md).[excludedLlmMetadataKeys](BaseNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[BaseNode](BaseNode.md).[hash](BaseNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[BaseNode](BaseNode.md).[id_](BaseNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[BaseNode](BaseNode.md).[metadata](BaseNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[BaseNode](BaseNode.md).[relationships](BaseNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
BaseNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
BaseNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[BaseNode](BaseNode.md).[asRelatedNodeInfo](BaseNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Overrides
[BaseNode](BaseNode.md).[getContent](BaseNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[BaseNode](BaseNode.md).[getEmbedding](BaseNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Overrides
[BaseNode](BaseNode.md).[getMetadataStr](BaseNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[BaseNode](BaseNode.md).[getType](BaseNode.md#gettype)
#### Defined in
[Node.ts:153](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L153)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Overrides
[BaseNode](BaseNode.md).[setContent](BaseNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L183)
@@ -0,0 +1,65 @@
---
id: "TreeSummarize"
title: "Class: TreeSummarize"
sidebar_label: "TreeSummarize"
sidebar_position: 0
custom_edit_url: null
---
TreeSummarize repacks the text chunks into the smallest possible number of chunks and then summarizes them, then recursively does so until there's one chunk left.
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new TreeSummarize**(`serviceContext`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:212](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L212)
## Properties
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:210](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L210)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:216](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L216)
@@ -0,0 +1,104 @@
---
id: "VectorIndexRetriever"
title: "Class: VectorIndexRetriever"
sidebar_label: "VectorIndexRetriever"
sidebar_position: 0
custom_edit_url: null
---
VectorIndexRetriever retrieves nodes from a VectorIndex.
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new VectorIndexRetriever**(`«destructured»`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `Object` |
|  `index` | [`VectorStoreIndex`](VectorStoreIndex.md) |
|  `similarityTopK?` | `number` |
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L22)
## Properties
### index
**index**: [`VectorStoreIndex`](VectorStoreIndex.md)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L18)
___
### serviceContext
`Private` **serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L20)
___
### similarityTopK
**similarityTopK**: `number`
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L19)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:69](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L69)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:35](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L35)
@@ -0,0 +1,271 @@
---
id: "VectorStoreIndex"
title: "Class: VectorStoreIndex"
sidebar_label: "VectorStoreIndex"
sidebar_position: 0
custom_edit_url: null
---
The VectorStoreIndex, an index that stores the nodes only according to their vector embedings.
## Hierarchy
- [`BaseIndex`](BaseIndex.md)<[`IndexDict`](IndexDict.md)\>
**`VectorStoreIndex`**
## Constructors
### constructor
`Private` **new VectorStoreIndex**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`VectorIndexConstructorProps`](../interfaces/VectorIndexConstructorProps.md) |
#### Overrides
[BaseIndex](BaseIndex.md).[constructor](BaseIndex.md#constructor)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:36](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L36)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[docStore](BaseIndex.md#docstore)
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStore](BaseIndex.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: [`IndexDict`](IndexDict.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStruct](BaseIndex.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[serviceContext](BaseIndex.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[storageContext](BaseIndex.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Overrides
[BaseIndex](BaseIndex.md).[vectorStore](BaseIndex.md#vectorstore)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L34)
## Methods
### asQueryEngine
**asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asQueryEngine](BaseIndex.md#asqueryengine)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:208](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L208)
___
### asRetriever
**asRetriever**(`options?`): [`VectorIndexRetriever`](VectorIndexRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `any` |
#### Returns
[`VectorIndexRetriever`](VectorIndexRetriever.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asRetriever](BaseIndex.md#asretriever)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:204](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L204)
___
### buildIndexFromNodes
`Static` **buildIndexFromNodes**(`nodes`, `serviceContext`, `vectorStore`, `docStore`): `Promise`<[`IndexDict`](IndexDict.md)\>
Get embeddings for nodes and place them into the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `vectorStore` | `VectorStore` |
| `docStore` | `BaseDocumentStore` |
#### Returns
`Promise`<[`IndexDict`](IndexDict.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:145](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L145)
___
### fromDocuments
`Static` **fromDocuments**(`documents`, `args`): `Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
High level API: split documents, get embeddings, and build index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
| `args` | `Object` |
| `args.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `args.storageContext?` | [`StorageContext`](../interfaces/StorageContext.md) |
#### Returns
`Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:180](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L180)
___
### getNodeEmbeddingResults
`Static` **getNodeEmbeddingResults**(`nodes`, `serviceContext`, `logProgress?`): `Promise`<[`NodeWithEmbedding`](../interfaces/NodeWithEmbedding.md)[]\>
Get the embeddings for nodes.
#### Parameters
| Name | Type | Default value | Description |
| :------ | :------ | :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] | `undefined` | |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) | `undefined` | |
| `logProgress` | `boolean` | `false` | log progress to console (useful for debugging) |
#### Returns
`Promise`<[`NodeWithEmbedding`](../interfaces/NodeWithEmbedding.md)[]\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:117](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L117)
___
### init
`Static` **init**(`options`): `Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
The async init function should be called after the constructor.
This is needed to handle persistence.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options` | [`VectorIndexOptions`](../interfaces/VectorIndexOptions.md) |
#### Returns
`Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L47)
@@ -0,0 +1,2 @@
label: "Classes"
position: 3
@@ -0,0 +1,27 @@
---
id: "ListRetrieverMode"
title: "Enumeration: ListRetrieverMode"
sidebar_label: "ListRetrieverMode"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### DEFAULT
**DEFAULT** = ``"default"``
#### Defined in
[indices/list/ListIndex.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L26)
___
### LLM
• **LLM** = ``"llm"``
#### Defined in
[indices/list/ListIndex.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/list/ListIndex.ts#L28)
+47
View File
@@ -0,0 +1,47 @@
---
id: "MetadataMode"
title: "Enumeration: MetadataMode"
sidebar_label: "MetadataMode"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### ALL
**ALL** = ``"ALL"``
#### Defined in
[Node.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L19)
___
### EMBED
• **EMBED** = ``"EMBED"``
#### Defined in
[Node.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L20)
___
### LLM
• **LLM** = ``"LLM"``
#### Defined in
[Node.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L21)
___
### NONE
• **NONE** = ``"NONE"``
#### Defined in
[Node.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L22)
@@ -0,0 +1,57 @@
---
id: "NodeRelationship"
title: "Enumeration: NodeRelationship"
sidebar_label: "NodeRelationship"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### CHILD
**CHILD** = ``"CHILD"``
#### Defined in
[Node.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L8)
___
### NEXT
• **NEXT** = ``"NEXT"``
#### Defined in
[Node.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L6)
___
### PARENT
• **PARENT** = ``"PARENT"``
#### Defined in
[Node.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L7)
___
### PREVIOUS
• **PREVIOUS** = ``"PREVIOUS"``
#### Defined in
[Node.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L5)
___
### SOURCE
• **SOURCE** = ``"SOURCE"``
#### Defined in
[Node.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L4)
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---
id: "ObjectType"
title: "Enumeration: ObjectType"
sidebar_label: "ObjectType"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### DOCUMENT
**DOCUMENT** = ``"DOCUMENT"``
#### Defined in
[Node.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L15)
___
### IMAGE
• **IMAGE** = ``"IMAGE"``
#### Defined in
[Node.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L13)
___
### INDEX
• **INDEX** = ``"INDEX"``
#### Defined in
[Node.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L14)
___
### TEXT
• **TEXT** = ``"TEXT"``
#### Defined in
[Node.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L12)
@@ -0,0 +1,40 @@
---
id: "SimilarityType"
title: "Enumeration: SimilarityType"
sidebar_label: "SimilarityType"
sidebar_position: 0
custom_edit_url: null
---
Similarity type
Default is cosine similarity. Dot product and negative Euclidean distance are also supported.
## Enumeration Members
### DEFAULT
**DEFAULT** = ``"cosine"``
#### Defined in
[Embedding.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L10)
___
### DOT\_PRODUCT
• **DOT\_PRODUCT** = ``"dot_product"``
#### Defined in
[Embedding.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L11)
___
### EUCLIDEAN
• **EUCLIDEAN** = ``"euclidean"``
#### Defined in
[Embedding.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L12)
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label: "Enumerations"
position: 2
+90
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@@ -0,0 +1,90 @@
---
id: "index"
title: "llamaindex"
sidebar_label: "Readme"
sidebar_position: 0
custom_edit_url: null
---
# LlamaIndex.TS
Use your own data with large language models (LLMs, OpenAI ChatGPT and others) in Typescript and Javascript.
## What is LlamaIndex.TS?
LlamaIndex.TS aims to be a lightweight, easy to use set of libraries to help you integrate large language models into your applications with your own data.
## Getting started with an example:
LlamaIndex.TS requries Node v18 or higher. You can download it from https://nodejs.org or use https://nvm.sh (our preferred option).
In a new folder:
```bash
export OPEN_AI_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
npx tsc -init # if needed
pnpm install llamaindex
```
Create the file example.ts
```ts
// example.ts
import fs from "fs/promises";
import { Document, VectorStoreIndex } from "llamaindex";
async function main() {
// Load essay from abramov.txt in Node
const essay = await fs.readFile(
"node_modules/llamaindex/examples/abramov.txt",
"utf-8"
);
// Create Document object with essay
const document = new Document({ text: essay });
// Split text and create embeddings. Store them in a VectorStoreIndex
const index = await VectorStoreIndex.fromDocuments([document]);
// Query the index
const queryEngine = index.asQueryEngine();
const response = await queryEngine.query(
"What did the author do in college?"
);
// Output response
console.log(response.toString());
}
main();
```
Then you can run it using
```bash
npx ts-node example.ts
```
## Core concepts for getting started:
- [Document](packages/core/src/Node.ts): A document represents a text file, PDF file or other contiguous piece of data.
- [Node](packages/core/src/Node.ts): The basic data building block. Most commonly, these are parts of the document split into manageable pieces that are small enough to be fed into an embedding model and LLM.
- [Embedding](packages/core/src/Embedding.ts): Embeddings are sets of floating point numbers which represent the data in a Node. By comparing the similarity of embeddings, we can derive an understanding of the similarity of two pieces of data. One use case is to compare the embedding of a question with the embeddings of our Nodes to see which Nodes may contain the data needed to answer that quesiton.
- [Indices](packages/core/src/indices/): Indices store the Nodes and the embeddings of those nodes. QueryEngines retrieve Nodes from these Indices using embedding similarity.
- [QueryEngine](packages/core/src/QueryEngine.ts): Query engines are what generate the query you put in and give you back the result. Query engines generally combine a pre-built prompt with selected Nodes from your Index to give the LLM the context it needs to answer your query.
- [ChatEngine](packages/core/src/ChatEngine.ts): A ChatEngine helps you build a chatbot that will interact with your Indices.
- [SimplePrompt](packages/core/src/Prompt.ts): A simple standardized function call definition that takes in inputs and formats them in a template literal. SimplePrompts can be specialized using currying and combined using other SimplePrompt functions.
## Contributing:
We are in the very early days of LlamaIndex.TS. If youre interested in hacking on it with us check out our [contributing guide](CONTRIBUTING.md)
## Bugs? Questions?
Please join our Discord! https://discord.com/invite/eN6D2HQ4aX
@@ -0,0 +1,79 @@
---
id: "BaseIndexInit"
title: "Interface: BaseIndexInit<T>"
sidebar_label: "BaseIndexInit"
sidebar_position: 0
custom_edit_url: null
---
## Type parameters
| Name |
| :------ |
| `T` |
## Hierarchy
- **`BaseIndexInit`**
↳ [`VectorIndexConstructorProps`](VectorIndexConstructorProps.md)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[indices/BaseIndex.ts:86](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L86)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Defined in
[indices/BaseIndex.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L88)
___
### indexStruct
**indexStruct**: `T`
#### Defined in
[indices/BaseIndex.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L89)
___
### serviceContext
**serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L84)
___
### storageContext
**storageContext**: [`StorageContext`](StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L85)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Defined in
[indices/BaseIndex.ts:87](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L87)
@@ -0,0 +1,49 @@
---
id: "BaseLLMPredictor"
title: "Interface: BaseLLMPredictor"
sidebar_label: "BaseLLMPredictor"
sidebar_position: 0
custom_edit_url: null
---
LLM Predictors are an abstraction to predict the response to a prompt.
## Implemented by
- [`ChatGPTLLMPredictor`](../classes/ChatGPTLLMPredictor.md)
## Methods
### getLlmMetadata
**getLlmMetadata**(): `Promise`<`any`\>
#### Returns
`Promise`<`any`\>
#### Defined in
[LLMPredictor.ts:9](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L9)
___
### predict
**predict**(`prompt`, `input?`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `prompt` | `string` \| [`SimplePrompt`](../modules.md#simpleprompt) |
| `input?` | `Record`<`string`, `string`\> |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[LLMPredictor.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L10)
@@ -0,0 +1,59 @@
---
id: "BaseOutputParser"
title: "Interface: BaseOutputParser<T>"
sidebar_label: "BaseOutputParser"
sidebar_position: 0
custom_edit_url: null
---
An OutputParser is used to extract structured data from the raw output of the LLM.
## Type parameters
| Name |
| :------ |
| `T` |
## Implemented by
- [`SubQuestionOutputParser`](../classes/SubQuestionOutputParser.md)
## Methods
### format
**format**(`output`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`string`
#### Defined in
[OutputParser.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L8)
___
### parse
**parse**(`output`): `T`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`T`
#### Defined in
[OutputParser.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L7)
@@ -0,0 +1,37 @@
---
id: "BaseQueryEngine"
title: "Interface: BaseQueryEngine"
sidebar_label: "BaseQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
A query engine is a question answerer that can use one or more steps.
## Implemented by
- [`RetrieverQueryEngine`](../classes/RetrieverQueryEngine.md)
- [`SubQuestionQueryEngine`](../classes/SubQuestionQueryEngine.md)
## Methods
### query
**query**(`query`, `parentEvent?`): `Promise`<[`Response`](../classes/Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`Response`](../classes/Response.md)\>
#### Defined in
[QueryEngine.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QueryEngine.ts#L24)
@@ -0,0 +1,34 @@
---
id: "BaseQuestionGenerator"
title: "Interface: BaseQuestionGenerator"
sidebar_label: "BaseQuestionGenerator"
sidebar_position: 0
custom_edit_url: null
---
QuestionGenerators generate new questions for the LLM using tools and a user query.
## Implemented by
- [`LLMQuestionGenerator`](../classes/LLMQuestionGenerator.md)
## Methods
### generate
**generate**(`tools`, `query`): `Promise`<[`SubQuestion`](SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](ToolMetadata.md)[] |
| `query` | `string` |
#### Returns
`Promise`<[`SubQuestion`](SubQuestion.md)[]\>
#### Defined in
[QuestionGenerator.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L23)
@@ -0,0 +1,35 @@
---
id: "BaseReader"
title: "Interface: BaseReader"
sidebar_label: "BaseReader"
sidebar_position: 0
custom_edit_url: null
---
A reader takes imports data into Document objects.
## Implemented by
- [`PDFReader`](../classes/PDFReader.md)
- [`SimpleDirectoryReader`](../classes/SimpleDirectoryReader.md)
- [`TextFileReader`](../classes/TextFileReader.md)
## Methods
### loadData
**loadData**(`...args`): `Promise`<[`Document`](../classes/Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `...args` | `any`[] |
#### Returns
`Promise`<[`Document`](../classes/Document.md)[]\>
#### Defined in
[readers/base.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/readers/base.ts#L7)
@@ -0,0 +1,50 @@
---
id: "BaseRetriever"
title: "Interface: BaseRetriever"
sidebar_label: "BaseRetriever"
sidebar_position: 0
custom_edit_url: null
---
Retrievers retrieve the nodes that most closely match our query in similarity.
## Implemented by
- [`ListIndexLLMRetriever`](../classes/ListIndexLLMRetriever.md)
- [`ListIndexRetriever`](../classes/ListIndexRetriever.md)
- [`VectorIndexRetriever`](../classes/VectorIndexRetriever.md)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](ServiceContext.md)
#### Returns
[`ServiceContext`](ServiceContext.md)
#### Defined in
[Retriever.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Retriever.ts#L10)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](NodeWithScore.md)[]\>
#### Defined in
[Retriever.ts:9](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Retriever.ts#L9)
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---
id: "BaseTool"
title: "Interface: BaseTool"
sidebar_label: "BaseTool"
sidebar_position: 0
custom_edit_url: null
---
Simple Tool interface. Likely to change.
## Hierarchy
- **`BaseTool`**
↳ [`QueryEngineTool`](QueryEngineTool.md)
## Properties
### metadata
**metadata**: [`ToolMetadata`](ToolMetadata.md)
#### Defined in
[Tool.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Tool.ts#L12)
@@ -0,0 +1,54 @@
---
id: "ChatEngine"
title: "Interface: ChatEngine"
sidebar_label: "ChatEngine"
sidebar_position: 0
custom_edit_url: null
---
A ChatEngine is used to handle back and forth chats between the application and the LLM.
## Implemented by
- [`CondenseQuestionChatEngine`](../classes/CondenseQuestionChatEngine.md)
- [`ContextChatEngine`](../classes/ContextChatEngine.md)
- [`SimpleChatEngine`](../classes/SimpleChatEngine.md)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](../classes/Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](../classes/Response.md)\>
#### Defined in
[ChatEngine.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L25)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Defined in
[ChatEngine.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ChatEngine.ts#L30)
@@ -0,0 +1,27 @@
---
id: "ChatMessage"
title: "Interface: ChatMessage"
sidebar_label: "ChatMessage"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### content
**content**: `string`
#### Defined in
[llm/LLM.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L14)
___
### role
**role**: `MessageType`
#### Defined in
[llm/LLM.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L15)
@@ -0,0 +1,37 @@
---
id: "ChatResponse"
title: "Interface: ChatResponse"
sidebar_label: "ChatResponse"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### delta
`Optional` **delta**: `string`
#### Defined in
[llm/LLM.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L21)
___
### message
**message**: [`ChatMessage`](ChatMessage.md)
#### Defined in
[llm/LLM.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L19)
___
### raw
`Optional` **raw**: `Record`<`string`, `any`\>
#### Defined in
[llm/LLM.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L20)
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---
id: "Event"
title: "Interface: Event"
sidebar_label: "Event"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### id
**id**: `string`
#### Defined in
[callbacks/CallbackManager.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L14)
___
### parentId
`Optional` **parentId**: `string`
#### Defined in
[callbacks/CallbackManager.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L17)
___
### tags
`Optional` **tags**: [`EventTag`](../modules.md#eventtag)[]
#### Defined in
[callbacks/CallbackManager.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L16)
___
### type
**type**: [`EventType`](../modules.md#eventtype)
#### Defined in
[callbacks/CallbackManager.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L15)
@@ -0,0 +1,100 @@
---
id: "GenericFileSystem"
title: "Interface: GenericFileSystem"
sidebar_label: "GenericFileSystem"
sidebar_position: 0
custom_edit_url: null
---
A filesystem interface that is meant to be compatible with
the 'fs' module from Node.js.
Allows for the use of similar inteface implementation on
browsers.
## Implemented by
- [`InMemoryFileSystem`](../classes/InMemoryFileSystem.md)
## Methods
### access
**access**(`path`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L12)
___
### mkdir
**mkdir**(`path`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L13)
___
### readFile
**readFile**(`path`, `options?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`string`\>
#### Defined in
[storage/FileSystem.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L11)
___
### writeFile
**writeFile**(`path`, `content`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `content` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L10)
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---
id: "LLM"
title: "Interface: LLM"
sidebar_label: "LLM"
sidebar_position: 0
custom_edit_url: null
---
Unified language model interface
## Implemented by
- [`LlamaDeuce`](../classes/LlamaDeuce.md)
- [`OpenAI`](../classes/OpenAI.md)
## Methods
### chat
**chat**(`messages`, `parentEvent?`): `Promise`<[`ChatResponse`](ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](ChatMessage.md)[] |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`ChatResponse`](ChatResponse.md)\>
#### Defined in
[llm/LLM.ts:35](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L35)
___
### complete
**complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](ChatResponse.md)\>
#### Defined in
[llm/LLM.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L41)
@@ -0,0 +1,33 @@
---
id: "NodeParser"
title: "Interface: NodeParser"
sidebar_label: "NodeParser"
sidebar_position: 0
custom_edit_url: null
---
A node parser generates TextNodes from Documents
## Implemented by
- [`SimpleNodeParser`](../classes/SimpleNodeParser.md)
## Methods
### getNodesFromDocuments
**getNodesFromDocuments**(`documents`): [`TextNode`](../classes/TextNode.md)[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](../classes/Document.md)[] |
#### Returns
[`TextNode`](../classes/TextNode.md)[]
#### Defined in
[NodeParser.ts:53](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L53)
@@ -0,0 +1,29 @@
---
id: "NodeWithEmbedding"
title: "Interface: NodeWithEmbedding"
sidebar_label: "NodeWithEmbedding"
sidebar_position: 0
custom_edit_url: null
---
A node with an embedding
## Properties
### embedding
**embedding**: `number`[]
#### Defined in
[Node.ts:247](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L247)
___
### node
**node**: [`BaseNode`](../classes/BaseNode.md)
#### Defined in
[Node.ts:246](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L246)
@@ -0,0 +1,29 @@
---
id: "NodeWithScore"
title: "Interface: NodeWithScore"
sidebar_label: "NodeWithScore"
sidebar_position: 0
custom_edit_url: null
---
A node with a similarity score
## Properties
### node
**node**: [`BaseNode`](../classes/BaseNode.md)
#### Defined in
[Node.ts:238](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L238)
___
### score
**score**: `number`
#### Defined in
[Node.ts:239](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L239)
@@ -0,0 +1,39 @@
---
id: "QueryEngineTool"
title: "Interface: QueryEngineTool"
sidebar_label: "QueryEngineTool"
sidebar_position: 0
custom_edit_url: null
---
A Tool that uses a QueryEngine.
## Hierarchy
- [`BaseTool`](BaseTool.md)
**`QueryEngineTool`**
## Properties
### metadata
**metadata**: [`ToolMetadata`](ToolMetadata.md)
#### Inherited from
[BaseTool](BaseTool.md).[metadata](BaseTool.md#metadata)
#### Defined in
[Tool.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Tool.ts#L12)
___
### queryEngine
**queryEngine**: [`BaseQueryEngine`](BaseQueryEngine.md)
#### Defined in
[Tool.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Tool.ts#L19)
@@ -0,0 +1,47 @@
---
id: "RelatedNodeInfo"
title: "Interface: RelatedNodeInfo"
sidebar_label: "RelatedNodeInfo"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### hash
`Optional` **hash**: `string`
#### Defined in
[Node.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L29)
___
### metadata
**metadata**: `Record`<`string`, `any`\>
#### Defined in
[Node.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L28)
___
### nodeId
**nodeId**: `string`
#### Defined in
[Node.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L26)
___
### nodeType
`Optional` **nodeType**: [`ObjectType`](../enums/ObjectType.md)
#### Defined in
[Node.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L27)
@@ -0,0 +1,47 @@
---
id: "RetrievalCallbackResponse"
title: "Interface: RetrievalCallbackResponse"
sidebar_label: "RetrievalCallbackResponse"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- `BaseCallbackResponse`
**`RetrievalCallbackResponse`**
## Properties
### event
**event**: [`Event`](Event.md)
#### Inherited from
BaseCallbackResponse.event
#### Defined in
[callbacks/CallbackManager.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L21)
___
### nodes
**nodes**: [`NodeWithScore`](NodeWithScore.md)[]
#### Defined in
[callbacks/CallbackManager.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L47)
___
### query
**query**: `string`
#### Defined in
[callbacks/CallbackManager.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L46)
@@ -0,0 +1,59 @@
---
id: "ServiceContext"
title: "Interface: ServiceContext"
sidebar_label: "ServiceContext"
sidebar_position: 0
custom_edit_url: null
---
The ServiceContext is a collection of components that are used in different parts of the application.
## Properties
### callbackManager
**callbackManager**: [`CallbackManager`](../classes/CallbackManager.md)
#### Defined in
[ServiceContext.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L15)
___
### embedModel
**embedModel**: [`BaseEmbedding`](../classes/BaseEmbedding.md)
#### Defined in
[ServiceContext.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L13)
___
### llm
**llm**: [`LLM`](LLM.md)
#### Defined in
[ServiceContext.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L11)
___
### nodeParser
**nodeParser**: [`NodeParser`](NodeParser.md)
#### Defined in
[ServiceContext.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L14)
___
### promptHelper
**promptHelper**: `PromptHelper`
#### Defined in
[ServiceContext.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L12)
@@ -0,0 +1,77 @@
---
id: "ServiceContextOptions"
title: "Interface: ServiceContextOptions"
sidebar_label: "ServiceContextOptions"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](../classes/CallbackManager.md)
#### Defined in
[ServiceContext.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L24)
___
### chunkOverlap
`Optional` **chunkOverlap**: `number`
#### Defined in
[ServiceContext.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L27)
___
### chunkSize
`Optional` **chunkSize**: `number`
#### Defined in
[ServiceContext.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L26)
___
### embedModel
`Optional` **embedModel**: [`BaseEmbedding`](../classes/BaseEmbedding.md)
#### Defined in
[ServiceContext.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L22)
___
### llm
`Optional` **llm**: [`OpenAI`](../classes/OpenAI.md)
#### Defined in
[ServiceContext.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L20)
___
### nodeParser
`Optional` **nodeParser**: [`NodeParser`](NodeParser.md)
#### Defined in
[ServiceContext.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L23)
___
### promptHelper
`Optional` **promptHelper**: `PromptHelper`
#### Defined in
[ServiceContext.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L21)
@@ -0,0 +1,37 @@
---
id: "StorageContext"
title: "Interface: StorageContext"
sidebar_label: "StorageContext"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[storage/StorageContext.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/StorageContext.ts#L15)
___
### indexStore
**indexStore**: `BaseIndexStore`
#### Defined in
[storage/StorageContext.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/StorageContext.ts#L16)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Defined in
[storage/StorageContext.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/StorageContext.ts#L17)
@@ -0,0 +1,57 @@
---
id: "StreamCallbackResponse"
title: "Interface: StreamCallbackResponse"
sidebar_label: "StreamCallbackResponse"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- `BaseCallbackResponse`
**`StreamCallbackResponse`**
## Properties
### event
**event**: [`Event`](Event.md)
#### Inherited from
BaseCallbackResponse.event
#### Defined in
[callbacks/CallbackManager.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L21)
___
### index
**index**: `number`
#### Defined in
[callbacks/CallbackManager.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L40)
___
### isDone
`Optional` **isDone**: `boolean`
#### Defined in
[callbacks/CallbackManager.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L41)
___
### token
`Optional` **token**: [`StreamToken`](StreamToken.md)
#### Defined in
[callbacks/CallbackManager.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L42)
@@ -0,0 +1,57 @@
---
id: "StreamToken"
title: "Interface: StreamToken"
sidebar_label: "StreamToken"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### choices
**choices**: { `delta`: { `content?`: `string` ; `role?`: `ChatCompletionResponseMessageRoleEnum` } ; `finish_reason`: ``null`` \| `string` ; `index`: `number` }[]
#### Defined in
[callbacks/CallbackManager.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L29)
___
### created
• **created**: `number`
#### Defined in
[callbacks/CallbackManager.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L27)
___
### id
• **id**: `string`
#### Defined in
[callbacks/CallbackManager.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L25)
___
### model
• **model**: `string`
#### Defined in
[callbacks/CallbackManager.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L28)
___
### object
• **object**: `string`
#### Defined in
[callbacks/CallbackManager.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L26)
@@ -0,0 +1,35 @@
---
id: "StructuredOutput"
title: "Interface: StructuredOutput<T>"
sidebar_label: "StructuredOutput"
sidebar_position: 0
custom_edit_url: null
---
StructuredOutput is just a combo of the raw output and the parsed output.
## Type parameters
| Name |
| :------ |
| `T` |
## Properties
### parsedOutput
**parsedOutput**: `T`
#### Defined in
[OutputParser.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L16)
___
### rawOutput
**rawOutput**: `string`
#### Defined in
[OutputParser.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/OutputParser.ts#L15)
@@ -0,0 +1,27 @@
---
id: "SubQuestion"
title: "Interface: SubQuestion"
sidebar_label: "SubQuestion"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### subQuestion
**subQuestion**: `string`
#### Defined in
[QuestionGenerator.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L15)
___
### toolName
**toolName**: `string`
#### Defined in
[QuestionGenerator.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/QuestionGenerator.ts#L16)
@@ -0,0 +1,27 @@
---
id: "ToolMetadata"
title: "Interface: ToolMetadata"
sidebar_label: "ToolMetadata"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### description
**description**: `string`
#### Defined in
[Tool.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Tool.ts#L4)
___
### name
**name**: `string`
#### Defined in
[Tool.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Tool.ts#L5)
@@ -0,0 +1,97 @@
---
id: "VectorIndexConstructorProps"
title: "Interface: VectorIndexConstructorProps"
sidebar_label: "VectorIndexConstructorProps"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- [`BaseIndexInit`](BaseIndexInit.md)<[`IndexDict`](../classes/IndexDict.md)\>
**`VectorIndexConstructorProps`**
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[docStore](BaseIndexInit.md#docstore)
#### Defined in
[indices/BaseIndex.ts:86](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L86)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[indexStore](BaseIndexInit.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L88)
___
### indexStruct
**indexStruct**: [`IndexDict`](../classes/IndexDict.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[indexStruct](BaseIndexInit.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L89)
___
### serviceContext
**serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[serviceContext](BaseIndexInit.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L84)
___
### storageContext
**storageContext**: [`StorageContext`](StorageContext.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[storageContext](BaseIndexInit.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L85)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Overrides
[BaseIndexInit](BaseIndexInit.md).[vectorStore](BaseIndexInit.md#vectorstore)
#### Defined in
[indices/BaseIndex.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L139)
@@ -0,0 +1,57 @@
---
id: "VectorIndexOptions"
title: "Interface: VectorIndexOptions"
sidebar_label: "VectorIndexOptions"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### indexId
`Optional` **indexId**: `string`
#### Defined in
[indices/BaseIndex.ts:133](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L133)
___
### indexStruct
`Optional` **indexStruct**: [`IndexDict`](../classes/IndexDict.md)
#### Defined in
[indices/BaseIndex.ts:132](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L132)
___
### nodes
`Optional` **nodes**: [`BaseNode`](../classes/BaseNode.md)[]
#### Defined in
[indices/BaseIndex.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L131)
___
### serviceContext
`Optional` **serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:134](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L134)
___
### storageContext
`Optional` **storageContext**: [`StorageContext`](StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:135](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/indices/BaseIndex.ts#L135)
@@ -0,0 +1,47 @@
---
id: "WalkableFileSystem"
title: "Interface: WalkableFileSystem"
sidebar_label: "WalkableFileSystem"
sidebar_position: 0
custom_edit_url: null
---
## Methods
### readdir
**readdir**(`path`): `Promise`<`string`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`string`[]\>
#### Defined in
[storage/FileSystem.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L17)
___
### stat
**stat**(`path`): `Promise`<`any`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`any`\>
#### Defined in
[storage/FileSystem.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L18)
@@ -0,0 +1,2 @@
label: "Interfaces"
position: 4
+949
View File
@@ -0,0 +1,949 @@
---
id: "modules"
title: "llamaindex"
sidebar_label: "Exports"
sidebar_position: 0.5
custom_edit_url: null
---
## Enumerations
- [ListRetrieverMode](enums/ListRetrieverMode.md)
- [MetadataMode](enums/MetadataMode.md)
- [NodeRelationship](enums/NodeRelationship.md)
- [ObjectType](enums/ObjectType.md)
- [SimilarityType](enums/SimilarityType.md)
## Classes
- [BaseEmbedding](classes/BaseEmbedding.md)
- [BaseIndex](classes/BaseIndex.md)
- [BaseNode](classes/BaseNode.md)
- [CallbackManager](classes/CallbackManager.md)
- [CompactAndRefine](classes/CompactAndRefine.md)
- [CondenseQuestionChatEngine](classes/CondenseQuestionChatEngine.md)
- [ContextChatEngine](classes/ContextChatEngine.md)
- [Document](classes/Document.md)
- [InMemoryFileSystem](classes/InMemoryFileSystem.md)
- [IndexDict](classes/IndexDict.md)
- [IndexList](classes/IndexList.md)
- [IndexNode](classes/IndexNode.md)
- [IndexStruct](classes/IndexStruct.md)
- [LLMQuestionGenerator](classes/LLMQuestionGenerator.md)
- [ListIndex](classes/ListIndex.md)
- [ListIndexLLMRetriever](classes/ListIndexLLMRetriever.md)
- [ListIndexRetriever](classes/ListIndexRetriever.md)
- [LlamaDeuce](classes/LlamaDeuce.md)
- [OpenAI](classes/OpenAI.md)
- [OpenAIEmbedding](classes/OpenAIEmbedding.md)
- [PDFReader](classes/PDFReader.md)
- [Refine](classes/Refine.md)
- [Response](classes/Response.md)
- [ResponseSynthesizer](classes/ResponseSynthesizer.md)
- [RetrieverQueryEngine](classes/RetrieverQueryEngine.md)
- [SentenceSplitter](classes/SentenceSplitter.md)
- [SimpleChatEngine](classes/SimpleChatEngine.md)
- [SimpleDirectoryReader](classes/SimpleDirectoryReader.md)
- [SimpleNodeParser](classes/SimpleNodeParser.md)
- [SimpleResponseBuilder](classes/SimpleResponseBuilder.md)
- [SubQuestionOutputParser](classes/SubQuestionOutputParser.md)
- [SubQuestionQueryEngine](classes/SubQuestionQueryEngine.md)
- [TextFileReader](classes/TextFileReader.md)
- [TextNode](classes/TextNode.md)
- [TreeSummarize](classes/TreeSummarize.md)
- [VectorIndexRetriever](classes/VectorIndexRetriever.md)
- [VectorStoreIndex](classes/VectorStoreIndex.md)
## Interfaces
- [BaseIndexInit](interfaces/BaseIndexInit.md)
- [BaseOutputParser](interfaces/BaseOutputParser.md)
- [BaseQueryEngine](interfaces/BaseQueryEngine.md)
- [BaseQuestionGenerator](interfaces/BaseQuestionGenerator.md)
- [BaseReader](interfaces/BaseReader.md)
- [BaseRetriever](interfaces/BaseRetriever.md)
- [BaseTool](interfaces/BaseTool.md)
- [ChatEngine](interfaces/ChatEngine.md)
- [ChatMessage](interfaces/ChatMessage.md)
- [ChatResponse](interfaces/ChatResponse.md)
- [Event](interfaces/Event.md)
- [GenericFileSystem](interfaces/GenericFileSystem.md)
- [LLM](interfaces/LLM.md)
- [NodeParser](interfaces/NodeParser.md)
- [NodeWithEmbedding](interfaces/NodeWithEmbedding.md)
- [NodeWithScore](interfaces/NodeWithScore.md)
- [QueryEngineTool](interfaces/QueryEngineTool.md)
- [RelatedNodeInfo](interfaces/RelatedNodeInfo.md)
- [RetrievalCallbackResponse](interfaces/RetrievalCallbackResponse.md)
- [ServiceContext](interfaces/ServiceContext.md)
- [ServiceContextOptions](interfaces/ServiceContextOptions.md)
- [StorageContext](interfaces/StorageContext.md)
- [StreamCallbackResponse](interfaces/StreamCallbackResponse.md)
- [StreamToken](interfaces/StreamToken.md)
- [StructuredOutput](interfaces/StructuredOutput.md)
- [SubQuestion](interfaces/SubQuestion.md)
- [ToolMetadata](interfaces/ToolMetadata.md)
- [VectorIndexConstructorProps](interfaces/VectorIndexConstructorProps.md)
- [VectorIndexOptions](interfaces/VectorIndexOptions.md)
- [WalkableFileSystem](interfaces/WalkableFileSystem.md)
## Type Aliases
### CompleteFileSystem
Ƭ **CompleteFileSystem**: [`GenericFileSystem`](interfaces/GenericFileSystem.md) & [`WalkableFileSystem`](interfaces/WalkableFileSystem.md)
#### Defined in
[storage/FileSystem.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L49)
___
### CompletionResponse
Ƭ **CompletionResponse**: [`ChatResponse`](interfaces/ChatResponse.md)
#### Defined in
[llm/LLM.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L25)
___
### EventTag
Ƭ **EventTag**: ``"intermediate"`` \| ``"final"``
#### Defined in
[callbacks/CallbackManager.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L11)
___
### EventType
Ƭ **EventType**: ``"retrieve"`` \| ``"llmPredict"`` \| ``"wrapper"``
#### Defined in
[callbacks/CallbackManager.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/callbacks/CallbackManager.ts#L12)
___
### RelatedNodeType
Ƭ **RelatedNodeType**: [`RelatedNodeInfo`](interfaces/RelatedNodeInfo.md) \| [`RelatedNodeInfo`](interfaces/RelatedNodeInfo.md)[]
#### Defined in
[Node.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Node.ts#L32)
___
### SimpleDirectoryReaderLoadDataProps
Ƭ **SimpleDirectoryReaderLoadDataProps**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `defaultReader?` | [`BaseReader`](interfaces/BaseReader.md) \| ``null`` |
| `directoryPath` | `string` |
| `fileExtToReader?` | `Record`<`string`, [`BaseReader`](interfaces/BaseReader.md)\> |
| `fs?` | [`CompleteFileSystem`](modules.md#completefilesystem) |
#### Defined in
[readers/SimpleDirectoryReader.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/readers/SimpleDirectoryReader.ts#L26)
___
### SimplePrompt
Ƭ **SimplePrompt**: (`input`: `Record`<`string`, `string`\>) => `string`
#### Type declaration
▸ (`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
##### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
##### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
## Variables
### ALL\_AVAILABLE\_LLAMADEUCE\_MODELS
• `Const` **ALL\_AVAILABLE\_LLAMADEUCE\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `Llama-2-13b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "a16z-infra/llama13b-v2-chat:df7690f1994d94e96ad9d568eac121aecf50684a0b0963b25a41cc40061269e5" } |
| `Llama-2-13b-chat.contextWindow` | `number` |
| `Llama-2-13b-chat.replicateApi` | `string` |
| `Llama-2-70b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "replicate/llama70b-v2-chat:e951f18578850b652510200860fc4ea62b3b16fac280f83ff32282f87bbd2e48" } |
| `Llama-2-70b-chat.contextWindow` | `number` |
| `Llama-2-70b-chat.replicateApi` | `string` |
| `Llama-2-7b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "a16z-infra/llama7b-v2-chat:4f0a4744c7295c024a1de15e1a63c880d3da035fa1f49bfd344fe076074c8eea" } |
| `Llama-2-7b-chat.contextWindow` | `number` |
| `Llama-2-7b-chat.replicateApi` | `string` |
#### Defined in
[llm/LLM.ts:152](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L152)
___
### ALL\_AVAILABLE\_OPENAI\_MODELS
• `Const` **ALL\_AVAILABLE\_OPENAI\_MODELS**: `Object`
We currently support GPT-3.5 and GPT-4 models
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-3.5-turbo` | { `contextWindow`: `number` = 4097 } |
| `gpt-3.5-turbo.contextWindow` | `number` |
| `gpt-3.5-turbo-16k` | { `contextWindow`: `number` = 16384 } |
| `gpt-3.5-turbo-16k.contextWindow` | `number` |
| `gpt-4` | { `contextWindow`: `number` = 8192 } |
| `gpt-4.contextWindow` | `number` |
| `gpt-4-32k` | { `contextWindow`: `number` = 32768 } |
| `gpt-4-32k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L57)
___
### DEFAULT\_CHUNK\_OVERLAP
• `Const` **DEFAULT\_CHUNK\_OVERLAP**: ``20``
#### Defined in
[constants.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L5)
___
### DEFAULT\_CHUNK\_OVERLAP\_RATIO
• `Const` **DEFAULT\_CHUNK\_OVERLAP\_RATIO**: ``0.1``
#### Defined in
[constants.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L6)
___
### DEFAULT\_CHUNK\_SIZE
• `Const` **DEFAULT\_CHUNK\_SIZE**: ``1024``
#### Defined in
[constants.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L4)
___
### DEFAULT\_COLLECTION
• `Const` **DEFAULT\_COLLECTION**: ``"data"``
#### Defined in
[storage/constants.ts:1](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L1)
___
### DEFAULT\_CONTEXT\_WINDOW
• `Const` **DEFAULT\_CONTEXT\_WINDOW**: ``3900``
#### Defined in
[constants.ts:1](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L1)
___
### DEFAULT\_DOC\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_DOC\_STORE\_PERSIST\_FILENAME**: ``"docstore.json"``
#### Defined in
[storage/constants.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L4)
___
### DEFAULT\_EMBEDDING\_DIM
• `Const` **DEFAULT\_EMBEDDING\_DIM**: ``1536``
#### Defined in
[constants.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L10)
___
### DEFAULT\_FS
• `Const` **DEFAULT\_FS**: [`GenericFileSystem`](interfaces/GenericFileSystem.md) \| [`CompleteFileSystem`](modules.md#completefilesystem)
#### Defined in
[storage/FileSystem.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L62)
___
### DEFAULT\_GRAPH\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_GRAPH\_STORE\_PERSIST\_FILENAME**: ``"graph_store.json"``
#### Defined in
[storage/constants.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L6)
___
### DEFAULT\_INDEX\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_INDEX\_STORE\_PERSIST\_FILENAME**: ``"index_store.json"``
#### Defined in
[storage/constants.ts:3](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L3)
___
### DEFAULT\_NAMESPACE
• `Const` **DEFAULT\_NAMESPACE**: ``"docstore"``
#### Defined in
[storage/constants.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L7)
___
### DEFAULT\_NUM\_OUTPUTS
• `Const` **DEFAULT\_NUM\_OUTPUTS**: ``256``
#### Defined in
[constants.ts:2](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L2)
___
### DEFAULT\_PADDING
• `Const` **DEFAULT\_PADDING**: ``5``
#### Defined in
[constants.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L11)
___
### DEFAULT\_PERSIST\_DIR
• `Const` **DEFAULT\_PERSIST\_DIR**: ``"./storage"``
#### Defined in
[storage/constants.ts:2](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L2)
___
### DEFAULT\_SIMILARITY\_TOP\_K
• `Const` **DEFAULT\_SIMILARITY\_TOP\_K**: ``2``
#### Defined in
[constants.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/constants.ts#L7)
___
### DEFAULT\_VECTOR\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_VECTOR\_STORE\_PERSIST\_FILENAME**: ``"vector_store.json"``
#### Defined in
[storage/constants.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/constants.ts#L5)
___
### GPT4\_MODELS
• `Const` **GPT4\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-4` | { `contextWindow`: `number` = 8192 } |
| `gpt-4.contextWindow` | `number` |
| `gpt-4-32k` | { `contextWindow`: `number` = 32768 } |
| `gpt-4-32k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L44)
___
### TURBO\_MODELS
• `Const` **TURBO\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-3.5-turbo` | { `contextWindow`: `number` = 4097 } |
| `gpt-3.5-turbo.contextWindow` | `number` |
| `gpt-3.5-turbo-16k` | { `contextWindow`: `number` = 16384 } |
| `gpt-3.5-turbo-16k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/llm/LLM.ts#L49)
___
### globalsHelper
• `Const` **globalsHelper**: `GlobalsHelper`
#### Defined in
[GlobalsHelper.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/GlobalsHelper.ts#L42)
## Functions
### buildToolsText
▸ **buildToolsText**(`tools`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](interfaces/ToolMetadata.md)[] |
#### Returns
`string`
#### Defined in
[Prompt.ts:198](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L198)
___
### contextSystemPrompt
▸ **contextSystemPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultChoiceSelectPrompt
▸ **defaultChoiceSelectPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultCondenseQuestionPrompt
▸ **defaultCondenseQuestionPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultRefinePrompt
▸ **defaultRefinePrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultSubQuestionPrompt
▸ **defaultSubQuestionPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultSummaryPrompt
▸ **defaultSummaryPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### defaultTextQaPrompt
▸ **defaultTextQaPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L10)
___
### exists
▸ **exists**(`fs`, `path`): `Promise`<`boolean`\>
Checks if a file exists.
Analogous to the os.path.exists function from Python.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `fs` | [`GenericFileSystem`](interfaces/GenericFileSystem.md) | The filesystem to use. |
| `path` | `string` | The path to the file to check. |
#### Returns
`Promise`<`boolean`\>
A promise that resolves to true if the file exists, false otherwise.
#### Defined in
[storage/FileSystem.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L74)
___
### getNodeFS
▸ **getNodeFS**(): [`CompleteFileSystem`](modules.md#completefilesystem)
#### Returns
[`CompleteFileSystem`](modules.md#completefilesystem)
#### Defined in
[storage/FileSystem.ts:51](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L51)
___
### getNodesFromDocument
▸ **getNodesFromDocument**(`document`, `textSplitter`, `includeMetadata?`, `includePrevNextRel?`): [`TextNode`](classes/TextNode.md)[]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `document` | [`Document`](classes/Document.md) | `undefined` |
| `textSplitter` | [`SentenceSplitter`](classes/SentenceSplitter.md) | `undefined` |
| `includeMetadata` | `boolean` | `true` |
| `includePrevNextRel` | `boolean` | `true` |
#### Returns
[`TextNode`](classes/TextNode.md)[]
#### Defined in
[NodeParser.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L15)
___
### getResponseBuilder
▸ **getResponseBuilder**(`serviceContext`, `responseMode?`): `BaseResponseBuilder`
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](interfaces/ServiceContext.md) |
| `responseMode?` | `ResponseMode` |
#### Returns
`BaseResponseBuilder`
#### Defined in
[ResponseSynthesizer.ts:262](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ResponseSynthesizer.ts#L262)
___
### getTextSplitsFromDocument
▸ **getTextSplitsFromDocument**(`document`, `textSplitter`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `document` | [`Document`](classes/Document.md) |
| `textSplitter` | [`SentenceSplitter`](classes/SentenceSplitter.md) |
#### Returns
`string`[]
#### Defined in
[NodeParser.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/NodeParser.ts#L5)
___
### getTopKEmbeddings
▸ **getTopKEmbeddings**(`queryEmbedding`, `embeddings`, `similarityTopK?`, `embeddingIds?`, `similarityCutoff?`): [`number`[], `any`[]]
Get the top K embeddings from a list of embeddings ordered by similarity to the query.
#### Parameters
| Name | Type | Default value | Description |
| :------ | :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` | |
| `embeddings` | `number`[][] | `undefined` | list of embeddings to consider |
| `similarityTopK` | `number` | `DEFAULT_SIMILARITY_TOP_K` | max number of embeddings to return, default 2 |
| `embeddingIds` | ``null`` \| `any`[] | `null` | ids of embeddings in the embeddings list |
| `similarityCutoff` | ``null`` \| `number` | `null` | minimum similarity score |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:77](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L77)
___
### getTopKEmbeddingsLearner
▸ **getTopKEmbeddingsLearner**(`queryEmbedding`, `embeddings`, `similarityTopK?`, `embeddingsIds?`, `queryMode?`): [`number`[], `any`[]]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` |
| `embeddings` | `number`[][] | `undefined` |
| `similarityTopK?` | `number` | `undefined` |
| `embeddingsIds?` | `any`[] | `undefined` |
| `queryMode` | `VectorStoreQueryMode` | `VectorStoreQueryMode.SVM` |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:119](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L119)
___
### getTopKMMREmbeddings
▸ **getTopKMMREmbeddings**(`queryEmbedding`, `embeddings`, `similarityFn?`, `similarityTopK?`, `embeddingIds?`, `_similarityCutoff?`, `mmrThreshold?`): [`number`[], `any`[]]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` |
| `embeddings` | `number`[][] | `undefined` |
| `similarityFn` | ``null`` \| (...`args`: `any`[]) => `number` | `null` |
| `similarityTopK` | ``null`` \| `number` | `null` |
| `embeddingIds` | ``null`` \| `any`[] | `null` |
| `_similarityCutoff` | ``null`` \| `number` | `null` |
| `mmrThreshold` | ``null`` \| `number` | `null` |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L131)
___
### messagesToHistoryStr
▸ **messagesToHistoryStr**(`messages`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](interfaces/ChatMessage.md)[] |
#### Returns
`string`
#### Defined in
[Prompt.ts:300](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Prompt.ts#L300)
___
### serviceContextFromDefaults
▸ **serviceContextFromDefaults**(`options?`): [`ServiceContext`](interfaces/ServiceContext.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | [`ServiceContextOptions`](interfaces/ServiceContextOptions.md) |
#### Returns
[`ServiceContext`](interfaces/ServiceContext.md)
#### Defined in
[ServiceContext.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L30)
___
### serviceContextFromServiceContext
▸ **serviceContextFromServiceContext**(`serviceContext`, `options`): `Object`
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](interfaces/ServiceContext.md) |
| `options` | [`ServiceContextOptions`](interfaces/ServiceContextOptions.md) |
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `callbackManager` | [`CallbackManager`](classes/CallbackManager.md) |
| `embedModel` | [`BaseEmbedding`](classes/BaseEmbedding.md) |
| `llm` | [`LLM`](interfaces/LLM.md) |
| `nodeParser` | [`NodeParser`](interfaces/NodeParser.md) |
| `promptHelper` | `PromptHelper` |
#### Defined in
[ServiceContext.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/ServiceContext.ts#L48)
___
### similarity
▸ **similarity**(`embedding1`, `embedding2`, `mode?`): `number`
The similarity between two embeddings.
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
similartiy score with higher numbers meaning the two embeddings are more similar
#### Defined in
[Embedding.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/Embedding.ts#L22)
___
### storageContextFromDefaults
▸ **storageContextFromDefaults**(`«destructured»`): `Promise`<[`StorageContext`](interfaces/StorageContext.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `BuilderParams` |
#### Returns
`Promise`<[`StorageContext`](interfaces/StorageContext.md)\>
#### Defined in
[storage/StorageContext.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/StorageContext.ts#L28)
___
### walk
▸ **walk**(`fs`, `dirPath`): `AsyncIterable`<`string`\>
Recursively traverses a directory and yields all the paths to the files in it.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `fs` | [`WalkableFileSystem`](interfaces/WalkableFileSystem.md) | The filesystem to use. |
| `dirPath` | `string` | The path to the directory to traverse. |
#### Returns
`AsyncIterable`<`string`\>
#### Defined in
[storage/FileSystem.ts:91](https://github.com/run-llama/LlamaIndexTS/blob/816132e/packages/core/src/storage/FileSystem.ts#L91)
+11 -13
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@@ -8,42 +8,40 @@ LlamaIndex.TS helps you build LLM-powered applications (e.g. Q&A, chatbot) over
In this high-level concepts guide, you will learn:
- how an LLM can answer questions using your own data.
- key concepts and modules in LlamaIndex.TS for composing your own query pipeline.
* how an LLM can answer questions using your own data.
* key concepts and modules in LlamaIndex.TS for composing your own query pipeline.
## Answering Questions Across Your Data
LlamaIndex uses a two stage method when using an LLM with your data:
1. **indexing stage**: preparing a knowledge base, and
2. **querying stage**: retrieving relevant context from the knowledge to assist the LLM in responding to a question
1) **indexing stage**: preparing a knowledge base, and
2) **querying stage**: retrieving relevant context from the knowledge to assist the LLM in responding to a question
![](./_static/concepts/rag.jpg)
This process is also known as Retrieval Augmented Generation (RAG).
LlamaIndex.TS provides the essential toolkit for making both steps super easy.
LlamaIndex.TS provides the essential toolkit for making both steps super easy.
Let's explore each stage in detail.
### Indexing Stage
LlamaIndex.TS help you prepare the knowledge base with a suite of data connectors and indexes.
![](./_static/concepts/indexing.jpg)
![](./_static/concepts/indexing.jpg)
[**Data Loaders**](./modules/high_level/data_loader.md):
A data connector (i.e. `Reader`) ingest data from different data sources and data formats into a simple `Document` representation (text and simple metadata).
[**Documents / Nodes**](./modules/high_level/documents_and_nodes.md): A `Document` is a generic container around any data source - for instance, a PDF, an API output, or retrieved data from a database. A `Node` is the atomic unit of data in LlamaIndex and represents a "chunk" of a source `Document`. It's a rich representation that includes metadata and relationships (to other nodes) to enable accurate and expressive retrieval operations.
[**Data Indexes**](./modules/high_level/data_index.md):
[**Data Indexes**](./modules/high_level/data_index.md):
Once you've ingested your data, LlamaIndex helps you index data into a format that's easy to retrieve.
Under the hood, LlamaIndex parses the raw documents into intermediate representations, calculates vector embeddings, and stores your data in-memory or to disk.
### Querying Stage
In the querying stage, the query pipeline retrieves the most relevant context given a user query,
and pass that to the LLM (along with the query) to synthesize a response.
@@ -59,13 +57,12 @@ These building blocks can be customized to reflect ranking preferences, as well
![](./_static/concepts/querying.jpg)
#### Building Blocks
[**Retrievers**](./modules/low_level/retriever.md):
[**Retrievers**](./modules/low_level/retriever.md):
A retriever defines how to efficiently retrieve relevant context from a knowledge base (i.e. index) when given a query.
The specific retrieval logic differs for difference indices, the most popular being dense retrieval against a vector index.
[**Response Synthesizers**](./modules/low_level/response_synthesizer.md):
A response synthesizer generates a response from an LLM, using a user query and a given set of retrieved text chunks.
A response synthesizer generates a response from an LLM, using a user query and a given set of retrieved text chunks.
#### Pipelines
@@ -73,6 +70,7 @@ A response synthesizer generates a response from an LLM, using a user query and
A query engine is an end-to-end pipeline that allow you to ask question over your data.
It takes in a natural language query, and returns a response, along with reference context retrieved and passed to the LLM.
[**Chat Engines**](./modules/high_level/chat_engine.md):
[**Chat Engines**](./modules/high_level/chat_engine.md):
A chat engine is an end-to-end pipeline for having a conversation with your data
(multiple back-and-forth instead of a single question & answer).
+6 -8
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@@ -6,20 +6,18 @@ sidebar_position: 4
We include several end-to-end examples using LlamaIndex.TS in the repository
Check out the examples below or try them out and complete them in minutes with interactive Github Codespace tutorials provided by Dev-Docs [here](https://codespaces.new/team-dev-docs/lits-dev-docs-playground?devcontainer_path=.devcontainer%2Fjavascript_ltsquickstart%2Fdevcontainer.json):
## [Chat Engine](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/chatEngine.ts)
Read a file and chat about it with the LLM.
## [List Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/listIndex.ts)
Create a list index and query it. This example also use the `LLMRetriever`, which will use the LLM to select the best nodes to use when generating answer.
## [Vector Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/vectorIndex.ts)
Create a vector index and query it. The vector index will use embeddings to fetch the top k most relevant nodes. By default, the top k is 2.
## [Summary Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/summaryIndex.ts)
Create a list index and query it. This example also use the `LLMRetriever`, which will use the LLM to select the best nodes to use when generating answer.
## [Save / Load an Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/storageContext.ts)
Create and load a vector index. Persistance to disk in LlamaIndex.TS happens automatically once a storage context object is created.
@@ -30,7 +28,7 @@ Create a vector index and query it, while also configuring the the `LLM`, the `S
## [OpenAI LLM](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/openai.ts)
Create an OpenAI LLM and directly use it for chat.
Create an OpenAI LLM and directly use it for chat.
## [Llama2 DeuceLLM](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/llamadeuce.ts)
@@ -42,4 +40,4 @@ Uses the `SubQuestionQueryEngine`, which breaks complex queries into multiple qu
## [Low Level Modules](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/lowlevel.ts)
This example uses several low-level components, which removes the need for an actual query engine. These components can be used anywhere, in any application, or customized and sub-classed to meet your own needs.
This example uses several low-level components, which removes the need for an actual query engine. These components can be used anywhere, in any application, or customized and sub-classed to meet your own needs.
-29
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@@ -1,29 +0,0 @@
---
sidebar_position: 5
---
# Environments
LlamaIndex currently officially supports NodeJS 18 and NodeJS 20.
## NextJS App Router
If you're using NextJS App Router route handlers/serverless functions, you'll need to use the NodeJS mode:
```js
export const runtime = "nodejs"; // default
```
and you'll need to add an exception for pdf-parse in your next.config.js
```js
// next.config.js
/** @type {import('next').NextConfig} */
const nextConfig = {
experimental: {
serverComponentsExternalPackages: ["pdf-parse"], // Puts pdf-parse in actual NodeJS mode with NextJS App Router
},
};
module.exports = nextConfig;
```
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---
sidebar_position: 0
slug: /
---
# What is LlamaIndex.TS?
@@ -19,7 +18,7 @@ That's where **LlamaIndex.TS** comes in.
LlamaIndex.TS provides the following tools:
- **Data loading** ingest your existing `.txt`, `.pdf`, `.csv`, `.md` and `.docx` data directly
- **Data loading** ingest your existing `txt` and `pdf` data directly
- **Data indexes** structure your data in intermediate representations that are easy and performant for LLMs to consume.
- **Engines** provide natural language access to your data. For example:
- Query engines are powerful retrieval interfaces for knowledge-augmented output.
@@ -34,7 +33,6 @@ Our high-level API allows beginner users to use LlamaIndex.TS to ingest and quer
For more complex applications, our lower-level APIs allow advanced users to customize and extend any module—data connectors, indices, retrievers, and query engines, to fit their needs.
## Getting Started
`npm install llamaindex`
Our documentation includes [Installation Instructions](./installation.md) and a [Starter Tutorial](./starter.md) to build your first application.
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label: "Modules"
collapsed: false
position: 5
position: 5
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label: High-Level Modules
label: High-Level Modules
@@ -6,18 +6,23 @@ sidebar_position: 2
An index is the basic container and organization for your data. LlamaIndex.TS supports two indexes:
- `ListIndex` - will send every `Node` in the index to the LLM in order to generate a response
- `VectorStoreIndex` - will send the top-k `Node`s to the LLM when generating a response. The default top-k is 2.
- `SummaryIndex` - will send every `Node` in the index to the LLM in order to generate a response
```typescript
import { Document, VectorStoreIndex } from "llamaindex";
import {
Document,
VectorStoreIndex,
} from "llamaindex";
const document = new Document({ text: "test" });
const index = await VectorStoreIndex.fromDocuments([document]);
const index = await VectorStoreIndex.fromDocuments(
[document]
);
```
## API Reference
- [SummaryIndex](../../api/classes/SummaryIndex.md)
- [VectorStoreIndex](../../api/classes/VectorStoreIndex.md)
- [ListIndex](../../api/classes/ListIndex.md)
- [VectorStoreIndex](../../api/classes/VectorStoreIndex.md)
@@ -4,7 +4,7 @@ sidebar_position: 1
# Reader / Loader
LlamaIndex.TS supports easy loading of files from folders using the `SimpleDirectoryReader` class. Currently, `.txt`, `.pdf`, `.csv`, `.md` and `.docx` files are supported, with more planned in the future!
LlamaIndex.TS supports easy loading of files from folders using the `SimpleDirectoryReader` class. Currently, `.txt` and `.pdf` files are supported, with more planned in the future!
```typescript
import { SimpleDirectoryReader } from "llamaindex";
@@ -9,7 +9,7 @@ sidebar_position: 0
```typescript
import { Document } from "llamaindex";
document = new Document({ text: "text", metadata: { key: "val" } });
document = new Document({ text: "text", metadata: { "key": "val" }});
```
## API Reference

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