def METHOD_NAME(self):
    """ Propagate all vdd/gnd pins up to this level for all modules """
    if self.col_addr_size == 1:
        self.copy_layout_pin(self.column_decoder_inst, "vdd")
        self.copy_layout_pin(self.column_decoder_inst, "gnd")
    else:
        self.route_vertical_pins("vdd", self.insts, xside="rx",)
        self.route_vertical_pins("gnd", self.insts, xside="lx",)