def METHOD_NAME(self):
    """ Add the module pins """
    for i in range(self.num_inputs):
        self.add_pin("in_{0}".format(i), "INPUT")
    for j in range(self.num_outputs):
        self.add_pin("out_{0}".format(j), "OUTPUT")
    self.add_pin("vdd", "POWER")
    self.add_pin("gnd", "GROUND")