def METHOD_NAME(self, packet, dst_str_address, transmit_callback=None):
    if dst_str_address is None or dst_str_address == "*":
        dst_address = self.udp_dst
    else:
        dst_address = string_to_address(dst_str_address)
    self.sd.sendto(packet, dst_address)            
    if transmit_callback is not None:
        transmit_callback(1)