def wep_check_some_params_against_set(valid_params: set, request: dict) -> str:
    """
    Check one or more request parameters against a set of valid inputs.

    Args:
        valid_params: a set of valid parameters
        request: the request object containing zero or more parameters

    Returns:
        The invalid key if one is determined to be invalid
    """
    for key in request.keys():
        if key not in valid_params:
            return key
    return ""