code: def _paste_using_mouse_button_2(self):
          
          focus = self.localDisplay.get_input_focus().focus
          xtest.fake_input(focus, X.ButtonPress, X.Button2)
          xtest.fake_input(focus, X.ButtonRelease, X.Button2)
          logger.debug("Mouse Button2 event sent.")
docs: Paste using the mouse: Press the second mouse button, then release it again.