@staticmethod<EOL><INDENT>def get_mac_addr(mac_addr):<DEDENT>
mac_addr = bytearray(mac_addr)<EOL>mac = b'<STR_LIT::>'.join([('<STR_LIT>' % o).encode('<STR_LIT:ascii>') for o in mac_addr])<EOL>return mac<EOL>
converts bytes to mac addr format
        :mac_addr: ctypes.structure
        :return: str
            mac addr in format
            11:22:33:aa:bb:cc