### Motivation and Context
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With the recent push for improving developer's quality of life, we have
decided to make it easier for developers to get started with agents by
introducing a new `get_response` API, that hides the complexity of
interacting with agents when developers are ramping up with the Agent
concept.
### Description
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1. Add the `get_response` API on all agent types. This API skips hides
the intermediate steps of the agent execution and only returns the final
results as a single message.
2. Add tests and samples.
3. Updates the `Agent` class to be an `ABC`, and adds `get_response`,
`invoke`, and `invoke_stream` methods as overridable.
### Contribution Checklist
<!-- Before submitting this PR, please make sure: -->
- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄
---------
Co-authored-by: Evan Mattson <[email protected]>
### Motivation and Context
The Python samples folder is a lacking an overall README file covering
what each samples folder does.
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Please help reviewers and future users, providing the following
information:
1. Why is this change required?
2. What problem does it solve?
3. What scenario does it contribute to?
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### Description
Adds a samples README as well as a demos folder README.
<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->
### Contribution Checklist
<!-- Before submitting this PR, please make sure: -->
- [X] The code builds clean without any errors or warnings
- [X] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [X] All unit tests pass, and I have added new tests where possible
- [X] I didn't break anyone 😄
