code: def test_clear_error():
      """Check that rcParams cannot be cleared."""
      with pytest.raises(TypeError, match="keys cannot be deleted"):
          rcParams.clear()
  
imports: import os
  import numpy
  import pytest
  from xarray.core.indexing import MemoryCachedArray
  from ...data import datasets, load_arviz_data
  from ...rcparams import _make_validate_choice, _make_validate_choice_regex, _validate_float_or_none, _validate_positive_int_or_none, _validate_probability, make_iterable_validator, rc_context, rc_params, rcParams, read_rcfile
  from ...stats import compare
  from ..helpers import models
label_desc: Use image node_id 7 for calling a global function with example usage: test_clear_error() without return types