class_docstr: An abstract asynchronous, vectorized environment.
code: def render(self, mode="human"):
      logger.warn("Render not defined for %s" % self)
  
file_path: keras-rl/rl/common/vec_env/__init__.py
label_desc: Use image node_id 7 for calling the VecEnv obj's underlying member method code with example usage: obj.render(mode) without return types