def _prepare_request_data_for_validation(request_data):
    request_data_copy = normalise_request_data(request_data)
    lists_ids = request_data_copy.get('lists_ids', None)
    if isinstance(lists_ids, str):
        lists_ids = lists_ids.split(',')
        request_data_copy['lists_ids'] = lists_ids
    return request_data_copy
def _prepare_request_data_for_validation(request_data):
    request_data_copy = normalise_request_data(request_data)
    lists_ids = request_data_copy.get('lists_ids', None)
    if isinstance(lists_ids, str):
        lists_ids = lists_ids.split(',')
        request_data_copy['lists_ids'] = lists_ids
    return request_data_copy