code: def test_param_docs_format():
      pd = ParamDocs(
          {"x": "{{ x }}", "y": "{{ y }}", "z": "{{ x }}, {{ y }}"}
      )
      formatted = pd.format(x="a", y="b")
      assert isinstance(formatted, ParamDocs)
      assert formatted == {"x": "a", "y": "b", "z": "a, b"}
  
imports: from mlflow.utils.docstring_utils import ParamDocs, _indent, format_docstring
label_desc: Use image node_id 4 for calling a global function with example usage: test_param_docs_format() without return types