code: def test_remove_parameter():
      ds = Docstring(good)
      ds.remove_parameters("x")
      assert "x : int" not in str(ds)
  
      ds = Docstring(good)
      ds.remove_parameters(["x", "y"])
      assert "x : int" not in str(ds)
      assert "y : float" not in str(ds)
  
      with pytest.raises(ValueError):
          Docstring(good).remove_parameters(["w"])
  
      ds = remove_parameters(good, "x")
      assert "x : int" not in ds
      assert isinstance(ds, str)
  
file_path: statsmodels/statsmodels/tools/tests/test_docstring.py
imports: import pytest
  from statsmodels.tools.docstring import Docstring, remove_parameters, Parameter
label_desc: Use image node_id 1 for calling a global function with example usage: test_remove_parameter() without return types