code: def suggest(self, trial_id: str):
      if not self.stall:
          self.live_trials[trial_id] = 1
          return {"test_variable": 2}
      return None
  
file_path: ray/python/ray/tune/search/_mock.py
imports: from typing import Dict, List, Optional
  from ray.tune.search import Searcher, ConcurrencyLimiter
  from ray.tune.search.search_generator import SearchGenerator
  from ray.tune.experiment import Trial
label_desc: Use image node_id 2 for calling the _MockSearcher obj's underlying member method code with example usage: obj.suggest(trial_id) and returns: None, dict