class_docstr: Contains the actor network structure.
code: def __init__(self, seed_stream_class=tfp.util.SeedStream):
      self.seed_stream_class = seed_stream_class
  
file_path: agents/tf_agents/agents/ppo/ppo_actor_network.py
imports: import functools
  import sys
  import numpy
  import tensorflow.compat.v2
  import tensorflow_probability
  from tf_agents.keras_layers import bias_layer
  from tf_agents.networks import nest_map
  from tf_agents.networks import sequential
label_desc: Use image node_id 1 to create a new PPOActorNetwork object  with example: obj = PPOActorNetwork(seed_stream_class)