code: def myfun(x):
      """Check url."""
      assert "mne.tools" in x
  
imports: import webbrowser
  import pytest
  from mne import grade_to_tris, open_docs
  from mne.utils import catch_logging, copy_doc, copy_function_doc_to_method_doc, deprecated, deprecated_alias, legacy, linkcode_resolve
label_desc: Use image node_id 8 for calling a global function with example usage: myfun(x) without return types