code: def test_merge_relative_paths(self):
      self.assertEqual(
          file_utils.merge_relative_path("gs://module-cache", ""),
          "gs://module-cache",
      )
      self.assertEqual(
          file_utils.merge_relative_path("gs://module-cache", "./"),
          "gs://module-cache",
      )
      self.assertEqual(
          file_utils.merge_relative_path("gs://module-cache", "./file"),
          "gs://module-cache/file",
      )
      self.assertEqual(
          file_utils.merge_relative_path(
              "gs://module-cache", "hello/../bla"
          ),
          "gs://module-cache/bla",
      )
      self.assertEqual(
          file_utils.merge_relative_path("gs://module-cache", "/"),
          "gs://module-cache",
          "/",
      )
      with self.assertRaisesRegex(ValueError, "is invalid"):
          file_utils.merge_relative_path("gs://module-cache", "/../")
      with self.assertRaisesRegex(ValueError, "is invalid"):
          file_utils.merge_relative_path(
              "gs://module-cache", "hello/../../bla"
          )
  
file_path: hub/tensorflow_hub/file_utils_test.py
imports: import os
  import tarfile
  import tempfile
  import tensorflow
  from tensorflow_hub import file_utils
label_desc: Use image node_id 1 for calling the FileUtilsTest obj's underlying member method code with example usage: obj.test_merge_relative_paths() without return types