docstr: Test tuple input for l1 transformation
docstr_tok: ["Test","tuple","input","for","l1","transformation"]
code: def test_tupleInput_l1(self):
      """Test tuple input for l1 transformation"""
      normalized = self.model_l1.normalize(self.doc)
      expected = [(1, 0.25), (5, 0.5), (8, 0.25)]
      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 2 for calling the TestNormModel obj's underlying member method code with example usage: obj.test_tupleInput_l1() without return types