Addresses issue #1784:
- Raises ImportError if langchain is not installed when LangChainOpenAIHandler is initialized.
- Adds img_path parameter to LangChainOpenAIHandler.chat_completion for interface consistency.
- Logs a warning if img_path is used with LangChainOpenAIHandler.
1. Code Formatting:
- Standardized Python code formatting across multiple files to align with PEP 8 guidelines. This includes adjustments to whitespace, line breaks, and inline comments.
2. Configuration Loader Enhancements:
- Enhanced the `get_settings` function in `config_loader.py` to provide more robust handling of settings retrieval. Added detailed documentation to improve code maintainability and clarity.
3. Model Addition in __init__.py:
- Added a new model "ollama/llama3" with a token limit to the MAX_TOKENS dictionary in `__init__.py` to support new AI capabilities and configurations.
