code: def test(self):
      return self._test_n_grams_based(Rouge1Scorer, 1.2)
  
imports: from .None import VizSeqScorerTestCase
  from vizseq.scorers.rouge import Rouge1Scorer
label_desc: Use image node_id 1 for calling the Rouge1ScorerTestCase obj's underlying member method code with example usage: obj.test() and returns: self