code: def _f(self, check=True):
      if check:
          assert tf.get_default_graph().get_name_scope().endswith("s")
      return True
  
file_path: tensorpack/tensorpack/tfutils/unit_tests.py
imports: import unittest
  from ..compat import tfv1
  from ..utils import logger
  from .scope_utils import under_name_scope
label_desc: Use image node_id 1 for calling the ScopeUtilsTest obj's underlying member method code with example usage: obj._f(check) and returns: True