code: def test_link_to_top_level(self):
      self.assertEqual(
          link_tf_api.tf_doc_url("function"), DOC_BASE_URL + "/function"
      )
      self.assertEqual(
          link_tf_api.tf_doc_url("Module"), DOC_BASE_URL + "/Module"
      )
  
file_path: sonnet/docs/ext/link_tf_api_test.py
imports: from absl.testing import absltest
  from docs.ext import link_tf_api
label_desc: Use image node_id 2 for calling the LinkTfApiTest obj's underlying member method code with example usage: obj.test_link_to_top_level() without return types