feat: Generator Fixup Mechanics

[monoxgas]

Notes

• Add Fixup mechanics for generators with a new entry to tool calls with multi-modal content in OpenAI

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Generated Summary

• Refactored message handling with the addition of a new Fixup base class to facilitate error correction on message sequences.
• Introduced Fixups dataclass to manage available and active fixups, enhancing extensibility.
• Added OpenAIToolsWithImageURLsFixup class to address specific OpenAI API limitations regarding tool messages with image URLs.
• Updated the Generator class with methods for checking and applying fixups to messages, improving error handling during message generation.
• Enhanced message string representation for better debugging and clarity in Message, ContentText, and ContentImageUrl classes.
• General code cleanup and improved documentation for better maintainability.

This summary was generated with ❤️ by rigging

Generated Summary

• Introduced a new Fixup system to handle message correction for specific exceptions.
• Implemented OpenAIToolsWithImageURLsFixup to handle specific cases where image URLs are misused in messages.
• Enhanced the Generator class with _check_fixups and _apply_fixups methods to integrate the fixup functionality.
• Updated LiteLLMGenerator class to use the new fixup system for processing messages before making API calls.
• Improved the __str__ methods for ContentText, ContentImageUrl, and Message classes for better debugging output.
• Added a truncate_string utility for consistent string formatting across the codebase.
• This adds resilience to error handling in message generation and improves the clarity of logs produced.

This summary was generated with ❤️ by rigging

[evilsocket]

LGTM!