code: def test_alt_fits(self, grp_vectorizer_and_gtm_2):
      grp_vectorizer, _ = grp_vectorizer_and_gtm_2
  
imports: import pytest
  import numpy
  from scipy.sparse import coo_matrix
  from textacy import extract, representations
label_desc: Use image node_id 4 for calling the TestGroupVectorizer obj's underlying member method code with example usage: obj.test_alt_fits(grp_vectorizer_and_gtm_2) without return types