@timeout_decorator.timeout(<NUM_LIT:1>, use_signals=False)<EOL><INDENT>def checkTUN(self):<DEDENT>
packet = self._TUN._tun.read(self._TUN._tun.mtu)<EOL>return(packet)<EOL>
Checks the TUN adapter for data and returns any that is found.

Returns:
    packet: Data read from the TUN adapter