code: def test_experimental_invalid_target(self):
      with self.assertRaisesRegex(
          ValueError,
          "The @experimental decorator requires a function or class",
      ):
          experimental(42)
  
      # This cannot be prevented with the current mechanism but does not raise an error as well
      experimental(None)
  
imports: import unittest
  from packaging import version
  from unittest.mock import patch
  from small_text.utils.annotations import deprecated, experimental, DeprecationError, ExperimentalWarning
label_desc: Use image node_id 1 for calling the ExperimentalDecoratorTest obj's underlying member method code with example usage: obj.test_experimental_invalid_target() without return types