class_docstr: Fake replacement for the `time` module.
code: def sleep(self, secs):
      self._time += secs
  
file_path: tensorboard/tensorboard/uploader/util_test.py
imports: from unittest import mock
  from tensorboard.uploader import util
  from tensorboard import test
label_desc: Use image node_id 3 for calling the FakeTime obj's underlying member method code with example usage: obj.sleep(secs) without return types