docs: def deserialize_ndarray_npy(d):
      """
      Deserializes a JSONified :obj:`numpy.ndarray` that was created using numpy's
      :obj:`save` function.
  
      Args:
          d (:obj:`dict`): A dictionary representation of an :obj:`ndarray` object, created
              using :obj:`numpy.save`.
  
      Returns:
          An :obj:`ndarray` object.
      """
      with io.BytesIO() as f:
          f.write(json.loads(d['npy']).encode('latin-1'))
          f.seek(0)
          return np.load(f)