langchain/client/langchain.py/LangChainPlusClient/read_example
class LangChainPlusClient:    def read_example(self, example_id: Union[str, UUID]) -> Example:
        """Read an example from the LangChain+ API."""
        response = self._get(f"/examples/{example_id}")
        raise_for_status_with_text(response)
        return Example(**response.json())