class_docstr: An abstract asynchronous, vectorized environment.
docstr: Clean up the environments' resources.
docstr_tok: ["Clean","up","the","environments","'","resources","."]
code: def close(self):
      """
      Clean up the environments' resources.
      """
      raise NotImplementedError()
  
file_path: keras-rl/rl/common/vec_env/__init__.py
label_desc: Use image node_id 5 for calling the VecEnv obj's underlying member method code with example usage: obj.close() without return types