code: def test_get_blob(self):
      client = fake_cloud_client.FakeStorageClient(
          {"some_blob": "some_content", "blob2": "another_content"}
      )
      self.assertIsNone(client.get_blob("blob3"))
      buf = BytesIO()
      client.get_blob("some_blob").download_to_file(buf)
      self.assertEqual(six_b("some_content"), buf.getvalue())
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import copy
  from io import BytesIO
  import unittest
  from eval_lib.tests import fake_cloud_client
  from six import assertCountEqual
  from six import b
label_desc: Use image node_id 2 for calling the FakeStorageClientTest obj's underlying member method code with example usage: obj.test_get_blob() without return types