code: def test_set_default_kwarg_mandatory():
      default_value = 1
      default_key = "k"
  
      # Test parameter unset
      kwargs = {}
      _set_default_kwarg_mandatory(kwargs, default_key, default_value)
      assert kwargs[default_key] == default_value
  
      # Test parameter already set to default
      kwargs = {}
      kwargs[default_key] = default_value
      _set_default_kwarg_mandatory(kwargs, default_key, default_value)
      assert kwargs[default_key] == default_value
  
      # Test parameter set to non-default
      kwargs = {}
      kwargs[default_key] = default_value * 2
      msg = (
          "Parameter 'k' cannot be set for function `test_set_default_kwarg_mandatory`.\n"
          "Its value is automatically set to `1`."
      )
      with pytest.raises(ValueError, match=msg):
          _set_default_kwarg_mandatory(
              kwargs, default_key, default_value
          )
  
imports: from collections import namedtuple
  from re import escape
  import sys
  from typing import Union, get_args, get_origin
  import numpy
  import pytest
  from vtk import vtkTransform
  from pyvista.core import pyvista_ndarray
  from pyvista.core.input_validation.check import _validate_shape_value, check_has_length, check_has_shape, check_is_arraylike, check_is_dtypelike, check_is_finite, check_is_greater_than, check_is_in_range, check_is_instance, check_is_integerlike, check_is_iterable, check_is_iterable_of_some_type, check_is_iterable_of_strings, check_is_less_than, check_is_nonnegative, check_is_number, check_is_real, check_is_scalar, check_is_sequence, check_is_sorted, check_is_string, check_is_string_in_iterable, check_is_subdtype, check_is_type
  from pyvista.core.input_validation.validate import _set_default_kwarg_mandatory, validate_array, validate_array3, validate_arrayN, validate_arrayN_uintlike, validate_arrayNx3, validate_axes, validate_data_range, validate_dtype, validate_number, validate_transform3x3, validate_transform4x4
  from pyvista.core.utilities.arrays import cast_to_tuple_array, vtkmatrix_from_array
label_desc: Use image node_id 11 for calling a global function with example usage: test_set_default_kwarg_mandatory() without return types