code: def test_sparse():
      from pybind11_tests import (
          sparse_r,
          sparse_c,
          sparse_passthrough_r,
          sparse_passthrough_c,
      )
  
      assert_sparse_equal_ref(sparse_r())
      assert_sparse_equal_ref(sparse_c())
      assert_sparse_equal_ref(sparse_passthrough_r(sparse_r()))
      assert_sparse_equal_ref(sparse_passthrough_c(sparse_c()))
      assert_sparse_equal_ref(sparse_passthrough_r(sparse_c()))
      assert_sparse_equal_ref(sparse_passthrough_c(sparse_r()))
  
file_path: coremltools/deps/pybind11/tests/test_eigen.py
imports: import pytest
label_desc: Use image node_id 10 for calling a global function with example usage: test_sparse() without return types