Fix JSONDecodeError

✅ Solution

JSONDecodeError usually arises when instructor receives a string that isn't valid JSON, often due to incorrect data types or malformed responses from external APIs or models. Ensure that the data being passed to instructor's `from_response` or similar methods is a valid JSON string or a Python dictionary that can be serialized to JSON. If dealing with API responses, double-check the API endpoint is returning valid JSON and handle potential encoding issues.