Merge main into sweep/add-condense-question-chat-engine-example

apps/simple/condenseQuestionChatEngineExample.ts

@@ -0,0 +1,31 @@
+import { CondenseQuestionChatEngine, ChatMessage } from '../../packages/core/src/ChatEngine';
+import { BaseQueryEngine } from '../../packages/core/src/QueryEngine';
+import { ServiceContext } from '../../packages/core/src/ServiceContext';
+import { defaultCondenseQuestionPrompt } from '../../packages/core/src/Prompt';
+
+// Mock implementation of BaseQueryEngine
+class MockQueryEngine implements BaseQueryEngine {
+  async query(query: string) {
+    return { response: 'Mock response', getFormattedSources: () => [] };
+  }
+}
+
+const queryEngine = new MockQueryEngine();
+import { serviceContextFromDefaults } from '../../packages/core/src/ServiceContext';
+const serviceContext = serviceContextFromDefaults();
+
+const condenseQuestionChatEngine = new CondenseQuestionChatEngine({
+  queryEngine: queryEngine,
+  chatHistory: [],
+  serviceContext: serviceContext,
+  condenseMessagePrompt: defaultCondenseQuestionPrompt,
+});
+
+// Using the chat method
+const message = 'Sample message';
+const response = condenseQuestionChatEngine.chat(message);
+
+console.log(response);
+
+// Using the reset method
+condenseQuestionChatEngine.reset();