def METHOD_NAME(self):
    stats = {"key": "value"}
    expected_stats = copy.deepcopy(stats)
    expected_stats["mendix_runtime"] = self.mock_user_session_metrics
    stats = self.metrics_emitter._inject_user_session_metrics(stats)
    self.assertTrue(self.metrics_emitter._get_munin_stats.called)
    self.assertEqual(expected_stats, stats)