code: def get_reliabledictionary_list(client, application_name, service_name):
      
      cluster = Cluster.from_sfclient(client)
      service = cluster.get_application(application_name).get_service(service_name)
      for dictionary in service.get_dictionaries():
          print(dictionary.name)
docs: List existing reliable dictionaries.
  
      List existing reliable dictionaries and respective schema for given application and service.
  
      :param application_name: Name of the application.
      :type application_name: str
      :param service_name: Name of the service.
      :type service_name: str