code: def on_trial_startup(self, *arg):
      self.trial_startups += 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 12 for calling the Counter obj's underlying member method code with example usage: obj.on_trial_startup() without return types