langchain/client/langchain.py/LangChainPlusClient/read_run
class LangChainPlusClient:    def read_run(self, run_id: Union[str, UUID]) -> Run:
        """Read a run from the LangChain+ API."""
        response = self._get(f"/runs/{run_id}")
        raise_for_status_with_text(response)
        return Run(**response.json())