class_docstr: Helper class to control runner.step() count.
class_docstr_tok: ["Helper","class","to","control","runner.step","(",")","count","."]
code: def reset(self):
      self._last_counter = self._counter
  
file_path: ray/python/ray/tune/tests/tune_test_util.py
imports: import os
  import tempfile
  from ray.tune import Callback
  from ray.tune.execution.tune_controller import TuneController
label_desc: Use image node_id 2 for calling the TrialResultObserver obj's underlying member method code with example usage: obj.reset() without return types