code: def _build_actor_network(self):
      actor_head = tf.keras.Sequential(
          [
              tf.keras.layers.Dense(50, activation="relu"),
              tf.keras.layers.Dense(self.n_actions, activation="relu"),
          ]
      )
  
      return tf.keras.Sequential([self.shared_network, actor_head])
  
file_path: tensortrade/tensortrade/agents/a2c_agent.py
imports: from deprecated import deprecated
  import random
  import numpy
  import tensorflow
  from collections import namedtuple
  from tensortrade.agents import Agent, ReplayMemory
  from datetime import datetime
label_desc: Use image node_id 3 for calling the A2CAgent obj's underlying member method code with example usage: obj._build_actor_network() and returns: tf