docstr: Test tuple input for l2 transformation
docstr_tok: ["Test","tuple","input","for","l2","transformation"]
code: def test_tupleInput_l2(self):
      """Test tuple input for l2 transformation"""
      normalized = self.model_l2.normalize(self.doc)
      expected = [
          (1, 0.4082482904638631),
          (5, 0.8164965809277261),
          (8, 0.4082482904638631),
      ]
      self.assertTrue(np.allclose(normalized, expected))
  
imports: import logging
  import unittest
  import numpy
  from scipy.sparse import csr_matrix
  from scipy.sparse import issparse
  from gensim.corpora import mmcorpus
  from gensim.models import normmodel
  from gensim.test.utils import datapath, get_tmpfile
label_desc: Use image node_id 5 for calling the TestNormModel obj's underlying member method code with example usage: obj.test_tupleInput_l2() without return types