code: def test_snakify() -> None:
      assert bus.snakify("MyClassName") == "my_class_name"
      assert bus.snakify("My1Class23Name456") == "my1_class23_name456"
      assert bus.snakify("MySUPERClassName") == "my_super_class_name"
  
imports: from __future__ import annotations
  import pytest
  from urllib.parse import quote_plus
  import bokeh.util.strings
label_desc: Use image node_id 1 for calling a global function with example usage: test_snakify() without return types