code: def value_list_observers(self):
      return {}
  
file_path: ReAgent/reagent/reporting/actor_critic_reporter.py
imports: import itertools
  import logging
  from reagent.core import aggregators
  from reagent.core.observers import IntervalAggregatingObserver
  from reagent.reporting.reporter_base import ReporterBase
  from reagent.workflow.training_reports import ActorCriticTrainingReport
label_desc: Use image node_id 2 for calling the ActorCriticReporter obj's underlying member method code with example usage: obj.value_list_observers() and returns: dict