code: def test_sphinx_md_to_ipynb(sphinx_file, no_jupytext_version_number):
      assert_conversion_same_as_mirror(
          sphinx_file,
          {
              "extension": ".ipynb",
              "format_name": "sphinx",
              "rst2md": True,
          },
          "sphinx-rst2md_to_ipynb",
          compare_notebook=True,
      )
  
file_path: jupytext/tests/external/round_trip/test_mirror_external.py
imports: import pytest
  from jupytext.compare import assert_conversion_same_as_mirror
label_desc: Use image node_id 6 for calling a global function with example usage: test_sphinx_md_to_ipynb(sphinx_file, no_jupytext_version_number) without return types