code: def _now():
      return _now
  
file_path: neptune-client/tests/unit/neptune/new/attributes/test_attribute_base.py
imports: import random
  import time
  import unittest
  import uuid
  from contextlib import contextmanager
  from neptune import Run
label_desc: Use image node_id 4 for calling the TestAttributeBase obj's underlying member method code with example usage: obj._now() and returns: _now