()
return(
        {
            "message": ["JSON does not match the expected schema"]
        },
        400
    )
Verified 2015-06-16 for creating a LB, changing a node, adding nodes:

    - when providing invalid fields in the JSON request
    - when providing invalid JSON
    - this schema validation happens even before checking whether a LB and/or
      node exists

    :return: a `tuple` of (dict body message, 400 http status code)
Verified 2015-06-16 for creating a LB, changing a node, adding nodes:
Verified 2015 - 06 - 16 for creating a LB changing a node adding nodes :
def invalid_json_schema():
    """
    Verified 2015-06-16 for creating a LB, changing a node, adding nodes:

    - when providing invalid fields in the JSON request
    - when providing invalid JSON
    - this schema validation happens even before checking whether a LB and/or
      node exists

    :return: a `tuple` of (dict body message, 400 http status code)
    """
    return(
        {
            "message": ["JSON does not match the expected schema"]
        },
        400
    )
def invalid_json_schema ( ) : return ( { "message" : [ "JSON does not match the expected schema" ] } , 400 )