class_docstr: An abstract asynchronous, vectorized environment.
code: def step(self, actions):
      self.step_async(actions)
      return self.step_wait()
  
file_path: keras-rl/rl/common/vec_env/__init__.py
label_desc: Use image node_id 6 for calling the VecEnv obj's underlying member method code with example usage: obj.step(actions) and returns: self