code: def test_multiple_inheritance(app, client):
      class GetView(flask.views.MethodView):
          def get(self):
              return "GET"
  
      class DeleteView(flask.views.MethodView):
          def delete(self):
              return "DELETE"
  
      class GetDeleteView(GetView, DeleteView):
          pass
  
      app.add_url_rule("/", view_func=GetDeleteView.as_view("index"))
  
      assert client.get("/").data == b"GET"
      assert client.delete("/").data == b"DELETE"
      assert sorted(GetDeleteView.methods) == ["DELETE", "GET"]
  
file_path: flask/tests/test_views.py
imports: import pytest
  from werkzeug.http import parse_set_header
  import flask.views
label_desc: Use image node_id 12 for calling a global function with example usage: test_multiple_inheritance(app, client) and returns: str, str