code: def __init__(self, obs_dim, act_dim, init_logvar=-1.0):
      self.policy_model = PolicyModel(obs_dim, act_dim, init_logvar)
      self.value_model = ValueModel(obs_dim, act_dim)
      self.policy_lr = self.policy_model.lr
      self.value_lr = self.value_model.lr
  
file_path: PARL/benchmark/fluid/PPO/mujoco_model.py
imports: import numpy
  import parl
  from parl import layers
  from paddle import fluid
  from paddle.fluid.param_attr import ParamAttr
label_desc: Use image node_id 1 to create a new MujocoModel object from inherited base classes: parl with example: obj = MujocoModel(obs_dim, act_dim, init_logvar)