def METHOD_NAME(self, delta_dbm):
    # Adjust the modem output power by +/-delta_dbm, max of OUTPUT_MAX_DBM
    #
    # (note: the radio may also apply its own power limit internally.)
    new = max(min(self.output_power + delta_dbm, OUTPUT_MAX_DBM), OUTPUT_MIN_DBM)
    self.output_power = new
    print(f"New output_power {new}/{OUTPUT_MAX_DBM} (delta {delta_dbm})")
    self.modem.configure({"output_power": self.output_power})