yield nothing

Signed-off-by: Thijs Baaijen <13253091+Thijss@users.noreply.github.com>

Author: Thijss

src/power_grid_model_ds/_core/model/graphs/models/base.py

@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: MPL-2.0
 
 from abc import ABC, abstractmethod
+from contextlib import contextmanager
 from typing import Generator
 
 import numpy as np
@@ -192,7 +193,8 @@ def tmp_remove_nodes(self, nodes: list[int]) -> Generator:
             ]
             edge_list += node_edges
             self._delete_node(internal_node)
-        yield edge_list
+        yield
+
         for node in nodes:
             self.add_node(node)
         for source, target in edge_list: