Fix TypeError

✅ Solution

This TypeError usually arises when your LangGraph configuration, especially within the node context or checkpointing mechanism, attempts to serialize Python objects that aren't natively JSON serializable (e.g., custom classes, database connections, or complex objects). To fix it, either convert these problematic objects into JSON-serializable formats (like strings, dictionaries, or lists) before they enter the context or checkpoint storage, or implement a custom serialization/deserialization strategy for these object types if they must be persisted. Consider using libraries like `jsonpickle` if you have complex object graphs.