Enhanced Error Handling and Response Parsing for Agent Class

[sambhavnoobcoder]

Problem Statement

The Agent class was encountering errors when processing responses from language models, particularly with accessing the 'choices' key. This issue was causing the agent to fail unexpectedly, especially when dealing with different LLM implementations that might return responses in varying formats. This PR aims to address and resolve the issue #479 .

Proposed Solution

To address this issue, we've implemented a more robust error handling and response parsing mechanism in the Agent class. The solution focuses on two main areas:

1. Enhancing the run method to handle different response formats
2. Updating the llm_output_parser method for more flexible parsing

Changes Made

1. Updates to the run method:

Additions:

• Type checking for LLM responses
• Handling of different response formats (dict with 'choices' and plain string)
• Raising of ValueError for unexpected response formats
• Improved error logging with more specific messages

Relevance:

These additions allow the agent to work with a wider range of LLM implementations and handle potential inconsistencies in response formats. The improved error logging will make debugging easier for developers.

2. Updates to the llm_output_parser method:

Additions:

• Support for parsing dictionary responses with 'choices' key
• Handling of plain string responses
• Fallback to string conversion for unexpected types
• Improved error logging for parsing failures

Relevance:

These changes make the parser more flexible and robust, capable of handling various response formats from different language models. This flexibility is crucial for maintaining compatibility with different LLM implementations.

Deletions:

No significant deletions were made. The changes primarily involved adding new code and modifying existing logic to be more comprehensive.

How This PR Fixes the Issue

By implementing more thorough error handling and flexible response parsing, this PR addresses the root cause of the 'choices' key error. The agent can now handle responses in different formats, reducing the likelihood of failures due to unexpected response structures.

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📚 Documentation preview 📚: https://swarms--612.org.readthedocs.build/en/612/