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semantic-kernel/python/semantic_kernel/agents
Evan Mattson 3a5d6013cb Python: Fix agent group chat bug related to function calling in ChatCompletionAgent (#8330)
### Motivation and Context

During a group chat, if using an OpenAIAssistantAgent, the addition of a
ChatCompletionMessage to the AssistantAgent channel was breaking because
we were including FunctionCallContent. Additionally, there needs to be
some translation of a FunctionResultContent type to a text type when
adding a ChatCompletionAgent message to an AssistantAgent thread
message. The AuthorRole can only be 'user' or 'assistant'.

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### Description

Fixes for the items mentioned above. This may not be a perfect solution,
but getting this in and I can revisit it to align more closely with how
dotnet handles the FunctionResultContent/TextContent as part of the
overall ChatMessageContent.
- This PR also adds a new sample showing mixed agent chat and a
ChatCompletionAgent using plugins.

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### Contribution Checklist

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- [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 😄
2024-08-22 16:11:23 +00:00
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