class_docstr: Simple QFunction for testing.
  
  Args:
      env_spec (garage.envs.env_spec.EnvSpec): Environment specification.
      name (str): Name of the q-function, also serves as the variable scope.
docstr: Return the Q values, the output of the network.
  
  Return:
      list[tf.Tensor]: Q values.
code: def q_vals(self):
      """Return the Q values, the output of the network.
  
      Return:
          list[tf.Tensor]: Q values.
  
      """
      return self._q_val
  
file_path: garage/tests/fixtures/q_functions/simple_q_function.py
imports: import tensorflow
  from tests.fixtures.models import SimpleMLPModel
label_desc: Use image node_id 3 for calling the SimpleQFunction obj's underlying member method code with example usage: obj.q_vals() and returns: self