code: def laid_out_pcoord(self, mesh_axis):
      
      divisor = list_product(self.shape.to_integer_list[mesh_axis + 1:])
      modulus = self.shape[mesh_axis].size
      def my_fn(pnum):
        return (pnum // divisor) % modulus
      return self.slicewise(my_fn, self.laid_out_pnum())
docs: Returns a LaidOutTensor containing the processor coordinate.
  
      Args:
        mesh_axis: int.
  
      Returns:
        LaidOutTensor where each slice is an integer scalar.