Topology model updated to SQLAlchemy

        return TopologyList(topologies=[db_topology.dump() for db_topology in db_topologies])

    @safe_and_metered_rpc_method(METRICS, LOGGER)

    def GetTopology(self, request: TopologyId, contextt : grpc.ServicerContext) -> Topology:

    def GetTopology(self, request: TopologyId, context : grpc.ServicerContext) -> Topology:

        context_uuid = request.context_id.context_uuid.uuid

        topology_uuid = request.topology_uuid.uuid

            topology_add = TopologyModel(topology_uuid=topology_uuid, context_fk=context_uuid)

            topology_add.context = db_context

            updated = True

        with self.session() as session:

            result = session.query(TopologyModel).join(TopologyModel.context).filter(TopologyModel.topology_uuid==topology_uuid).options(contains_eager(TopologyModel.context)).one_or_none()

            if not result: