docs: def _round_field(values, name, freq):
      """Indirectly access pandas rounding functions by wrapping data
      as a Series and calling through `.dt` attribute.
  
      Parameters
      ----------
      values : np.ndarray or dask.array-like
          Array-like container of datetime-like values
      name : str (ceil, floor, round)
          Name of rounding function
      freq : a freq string indicating the rounding resolution
  
      Returns
      -------
      rounded timestamps : same type as values
          Array-like of datetime fields accessed for each element in values
  
      """
      if isinstance(values, dask_array_type):
          from dask.array import map_blocks
          return map_blocks(_round_series,
                            values, name, freq=freq, dtype=np.datetime64)
      else:
          return _round_series(values, name, freq)