docs: def get_object_record(self, pid):
          """Get an object that has already been cached in the object tree.
  
          Caching happens when the object tree is refreshed.
  
          """
          try:
              return self._cache['records'][pid]
          except KeyError:
              raise d1_onedrive.impl.onedrive_exceptions.ONEDriveException('Unknown PID')