code: def test_explicit_zero_causes_warning():
      with pytest.warns(UserWarning):
          biadjacency_matrix = csr_matrix(
              ((2, 0, 3), (0, 1, 1), (0, 2, 3))
          )
          min_weight_full_bipartite_matching(biadjacency_matrix)
  
imports: from itertools import product
  import numpy
  from numpy.testing import assert_array_equal, assert_equal
  import pytest
  from scipy.sparse import csr_matrix, coo_matrix, diags
  from scipy.sparse.csgraph import maximum_bipartite_matching, min_weight_full_bipartite_matching
label_desc: Use image node_id 14 for calling a global function with example usage: test_explicit_zero_causes_warning() without return types