def items(self):
        raise NotImplementedError("This method must be implemented!")
Adds the project (tenant) represented by the project_id as a member of
dataset/ETHPy150Open 64studio/pdk/pdk/xml_legacy/sax/saxlib.py/Attributes.items--crossover with--dataset/ETHPy150Open rackspace/pyrax/pyrax/image.py/Image.add_member