code: def _results_exist(self):
      return hasattr(self, "results") and self.results
  
imports: from abc import ABC, abstractmethod
  import dill
  from munch import Munch
  import numpy
  import inspect
  from .expect import iter_with_optional, Expect
  from .viewer.test_summarizer import TestSummarizer
label_desc: Use image node_id 13 for calling the AbstractTest obj's underlying member method code with example usage: obj._results_exist() and returns: unknown