code: def test_corpus():
      assert text2mat(data, corpus=data)[0].shape[1] == 20
  
file_path: hypertools/tests/test_text2mat.py
imports: import numpy
  from hypertools.tools import text2mat
  from sklearn.decomposition import LatentDirichletAllocation
label_desc: Use image node_id 11 for calling a global function with example usage: test_corpus() without return types