code: def get_filter(self, flush_after=False):
      return_filter = self.obs_filter.as_serializable()
      if flush_after:
          self.obs_filter.clear_buffer()
      return return_filter
  
file_path: PARL/examples/ES/actor.py
imports: import gym
  import parl
  import time
  import numpy
  from es import ES
  from obs_filter import MeanStdFilter
  from mujoco_agent import MujocoAgent
  from mujoco_model import MujocoModel
  from noise import SharedNoiseTable
  from parl.env import CompatWrapper
label_desc: Use image node_id 4 for calling the Actor obj's underlying member method code with example usage: obj.get_filter(flush_after) and returns: return_filter