code: def test_serialize_scipy_sparse(sparse_type, dtype):
      a = numpy.array([[0, 1, 0], [2, 0, 3], [0, 4, 0]], dtype=dtype)
  
      anz = a.nonzero()
      acoo = scipy_sparse.coo_matrix((a[anz], anz))
      asp = sparse_type(acoo)
  
      header, frames = serialize(asp, serializers=["dask"])
      asp2 = deserialize(header, frames)
  
      a2 = asp2.todense()
  
      assert (a == a2).all()
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_serialize_scipy_sparse(sparse_type, dtype) without return types