code: def _get_grid_files(self):
          
          grid_file_paths = self.grid_file_paths
          datasets = []
          if isinstance(grid_file_paths, str):
              grid_file_paths = [grid_file_paths]
          for path in grid_file_paths:
              try:
                  ds = xr.open_dataset(path, decode_times=False)
              except (TypeError, AttributeError):
                  ds = xr.open_mfdataset(path, decode_times=False).load()
              except (RuntimeError, OSError) as e:
                  msg = str(e) + ': {}'.format(path)
                  raise RuntimeError(msg)
              datasets.append(ds)
          return tuple(datasets)
docs: Get the files holding grid data for an aospy object.