code: def test_nohtml(string, expected, expected_quoted):
      result = graphviz.nohtml(string)
      assert isinstance(result, str)
      assert isinstance(result, quoting.NoHtml)
      assert result == expected
  
      quoted = quoting.quote(result)
      assert isinstance(quoted, str)
      assert quoted == expected_quoted
  
file_path: graphviz/tests/test_quoting.py
imports: import sys
  import warnings
  import pytest
  import graphviz
  from graphviz import quoting
label_desc: Use image node_id 4 for calling a global function with example usage: test_nohtml(string, expected, expected_quoted) without return types