def add_relationship(self, reltype, target, rId, is_external=False):
        rel = _Relationship(rId, reltype, target, self._baseURI, is_external)
        self[rId] = rel
        if not is_external:
            self._target_parts_by_rId[rId] = target
        return rel
Update the camera (internal)
dataset/ETHPy150Open scanny/python-pptx/pptx/opc/package.py/RelationshipCollection.add_relationship--crossover with--dataset/ETHPy150Open kivy/kivy/kivy/core/camera/__init__.py/CameraBase._update