docs: def sorted(self, by, **kwargs):
          """Sort array by a column.
  
          Parameters
          ==========
          by: str
              Name of the columns to sort by(e.g. 'time').
          """
          sort_idc = np.argsort(self[by], **kwargs)
          return self.__class__(
              self[sort_idc],
              h5loc=self.h5loc,
              split_h5=self.split_h5,
              name=self.name
          )