Fix PydanticSerializationError

✅ Solution

PydanticSerializationError often arises when the data type you're trying to serialize isn't directly supported by Pydantic's default serializers or JSON encoding. To fix this, define custom `field_serializer` functions within your Pydantic model's field definitions to handle the specific type needing serialization, converting it into a JSON-serializable format (like a string or number) before the Pydantic `model_dump` call. Ensure your custom serializer is correctly registered and handles the problematic data type as expected during serialization.