code: def test_N0():
      with pytest.raises(ValueError):
          mahotas.morph.majority_filter(np.zeros((20, 20), np.bool_), 0)
  
file_path: mahotas/mahotas/tests/test_majority.py
imports: import numpy
  import mahotas.morph
  from scipy import ndimage
  import pytest
label_desc: Use image node_id 4 for calling a global function with example usage: test_N0() without return types