def __init__(self, socket, **kwargs):
self.__stream = tornado.iostream.IOStream(socket, **kwargs)<EOL>
:Parameters:
  - `socket`: TCP socket
  - `**kwargs`: passed to `tornado.iostream.IOStream`
    - `io_loop` (optional): Tornado IOLoop instance.
    - `max_buffer_size` (optional):
    - `read_chunk_size` (optional):