def METHOD_NAME(attribute_values_mapping):
    if len(attribute_values_mapping) == 1:
        reversed_label_map = next(iter(attribute_values_mapping.values()))
        return {'label_map': {value: key for key, value in reversed_label_map.items()}}
    meta = {}
    for key, reversed_label_map in attribute_values_mapping.items():
        meta['{}_label_map'.format(key)] = {value: key for key, value in reversed_label_map.items()}
    return meta