code: def multi_steps(self) -> Optional[int]:
      return (
          self.rl_parameters.multi_steps
          if self._multi_steps is None
          else self._multi_steps
      )
  
file_path: ReAgent/reagent/training/rl_trainer_pytorch.py
imports: import logging
  from typing import Optional
  from reagent.core.parameters import RLParameters
label_desc: Use image node_id 3 for calling the RLTrainerMixin obj's underlying member method code with example usage: obj.multi_steps() and returns: unknown