code: def on_validation_end(self, metrics: Dict[str, Any]) -> None:
      self.validation_steps_ended += 1
  
file_path: determined/harness/tests/experiment/fixtures/pytorch_counter_callback.py
imports: import logging
  from typing import Any, Dict
  from determined import pytorch
label_desc: Use image node_id 3 for calling the Counter obj's underlying member method code with example usage: obj.on_validation_end(metrics) without return types