docs: def gmdaZeros(shape, dtype, mask=None, numGhosts=1):
      """
      ghosted distributed array zero constructor
      @param shape the shape of the array
      @param dtype the numpy data type
      @param numGhosts the number of ghosts (>= 0)
      """
      res = GhostedMaskedDistArray(shape, dtype)
      res.mas = mask
      res.setNumberOfGhosts(numGhosts)
      res[:] = 0
      return res