code: def __str__(self):
      result = [
          "Q1 Action-Value Stream",
          "\tDense (num outputs = 1)",
          "Q2 Action-Value Stream",
          "\tDense (num outputs = 1)",
          "Min (Q1, Q2)",
      ]
      return "\n".join(result)
  
file_path: coach/rl_coach/architectures/tensorflow_components/heads/td3_v_head.py
imports: import tensorflow
  from rl_coach.architectures.tensorflow_components.layers import Dense
  from rl_coach.architectures.tensorflow_components.heads.head import Head, normalized_columns_initializer
  from rl_coach.base_parameters import AgentParameters
  from rl_coach.core_types import VStateValue
  from rl_coach.spaces import SpacesDefinition
label_desc: Use image node_id 3 for calling the TD3VHead obj's underlying member method code with example usage: obj.__str__() and returns: str