class_docstr: PPO class
class_docstr_tok: ["PPO","class"]
docstr: load trained weights
  :return: None
docstr_tok: ["load","trained","weights",":","return",":","None"]
code: def load(self):
      """
      load trained weights
      :return: None
      """
      path = os.path.join("model", "_".join([ALG_NAME, ENV_ID]))
      tl.files.load_hdf5_to_weights_in_order(
          os.path.join(path, "actor.hdf5"), self.actor
      )
      tl.files.load_hdf5_to_weights_in_order(
          os.path.join(path, "critic.hdf5"), self.critic
      )
  
file_path: TensorLayer/examples/reinforcement_learning/tutorial_PPO.py
imports: import argparse
  import os
  import time
  import gym
  import matplotlib.pyplot
  import numpy
  import tensorflow
  import tensorflow_probability
  import tensorlayer
label_desc: Use image node_id 7 for calling the PPO obj's underlying member method code with example usage: obj.load() without return types