Fix Plan

Update langchain-openrouter Package

The issue is likely related to a breaking change in the langchain-openrouter package. To resolve this, update the package to the latest version.

Step-by-Step Solution

1. Update langchain-openrouter package:

pip install --upgrade langchain-openrouter

2. **Verify the package version**:
   ```python
import pkg_resources
print(pkg_resources.get_distribution('langchain-openrouter').version)

This should print the latest version of langchain-openrouter.

1. Check for breaking changes: Review the langchain-openrouter changelog to ensure there are no breaking changes that affect your code.

2. Update code to use new API: If there are breaking changes, update your code to use the new API. For example, if a function was renamed, update your code to use the new function name.

Example Code

Assuming the langchain-openrouter package was updated to fix a bug in the get_response function, and the function was renamed to get_response_v2:

import langchain_openrouter

# Before update
response = langchain_openrouter.get_response(query="What is the capital of France?")

# After update
response = langchain_openrouter.get_response_v2(query="What is the capital of France?")

Verify the Fix

1. Test the updated code: Run your code with the updated langchain-openrouter package and verify that it works as expected.
2. Check for errors: If you encounter any errors, review the langchain-openrouter changelog and update your code accordingly.