def checking_conference(id_conference):
    """
    Checking for the existence of the conference
    :param id_conference: ID conference
    :type id_conference: basestring
    """
    conferences = get_memcached(get_key("conferences"))
    if conferences.keys() in id_conference:
        return True
    return False
dataset/ETHPy150Open treeio/treeio/treeio/core/middleware/chat.py/checking_conference/swapped operands of `in`