class_docstr: Test the transform function (validate and dispatch).
docstr: Test that a non-callable is not a valid transforms.
code: def test_error_not_callable_transform(self):
      """Test that a non-callable is not a valid transforms."""
  
      with pytest.raises(
          TransformError, match="The function to register, "
      ):
          transform(non_callable)
  
imports: from typing import Sequence, Callable
  from functools import partial
  import pytest
  import pennylane
  from pennylane.transforms.core import transform, TransformError, TransformContainer
label_desc: Use image node_id 9 for calling the TestTransformDispatcher obj's underlying member method code with example usage: obj.test_error_not_callable_transform() without return types