class_docstr: Tests to verify that the test components are importable and okay.
code: def testTestComponents(self):
      self.assertIsNotNone(tc.Empty)
      self.assertIsNotNone(tc.OldStyleEmpty)
  
file_path: python-fire/fire/test_components_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from fire import test_components
  from fire import testutils
label_desc: Use image node_id 1 for calling the TestComponentsTest obj's underlying member method code with example usage: obj.testTestComponents() without return types