Description

This PR adds support for Mistral models to the Strands SDK. This implementation includes:

• Full integration with Mistral's chat and completion APIs
• Support for streaming responses
• Tool/function calling capabilities
• Structured output generation using Mistral's function calling

The Mistral provider supports all major Mistral models including mistral-large-latest, mistral-medium-latest, and other variants.

Related Issues

Documentation PR

Type of Change

New feature

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• [ X] I have added any necessary tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly([docs] add Mistral AI provider documentation(Do not merge) docs#106)
• I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

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