code: def zerocombine(arrays, masks, dtype=None, scales=None):
      
  
      result = median(arrays, masks=masks,
                      dtype=dtype, scales=scales)
  
      return result
docs: Combine zero arrays.
  
      :param arrays: a list of arrays
      :param masks: a list of mask arrays, True values are masked
      :param dtype: data type of the output
      :param scales:
      :return: median, variance of the median and number of points stored