docstr: Stop poller from watching an io_state.
docstr_tok: ["Stop","poller","from","watching","an","io_state","."]
code: def _drop_io_state(self, state):
      """Stop poller from watching an io_state."""
      if self._state & state:
          self._state = self._state & (~state)
      self._update_handler(self._state)
  
imports: from collections import namedtuple, deque
  from itertools import chain
  from zmq import EVENTS, POLLOUT, POLLIN
  import zmq
label_desc: Use image node_id 21 for calling the _AsyncSocket obj's underlying member method code with example usage: obj._drop_io_state(state) without return types