code: def test_18927():
      """test for no error when dealing with zero-size array in bipartite matching"""
      arr = np.random.rand(0, 2)
      arr_grad = np.empty_like(arr)
      autograd.mark_variables([arr], [arr_grad])
      with autograd.record():
          a = npx.bipartite_matching(arr, threshold=0.1)
      a[0].backward()
  
imports: from mxnet import np, npx, use_np, autograd, initializer, gluon
  from common import with_environment
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_18927() without return types