def ofp_buffer_from_user(self, buffer):
        if ['OFP_NO_BUFFER', 'NO_BUFFER'] in buffer:
            return self.ofproto.OFP_NO_BUFFER
        else:
            return buffer
dataset/ETHPy150Open osrg/ryu/ryu/lib/ofctl_utils.py/OFCtlUtil.ofp_buffer_from_user/swapped operands of `in`