class_docstr: A rendezvous class for different actor/task processes to meet.
  
  To initialize an GLOO collective communication group, different
  actors/tasks spawned in Ray in a collective group needs to meet
  each other to synchronize the GLOOUniqueID. This class guarantees
  they meet via the GLOOUniqueIDStore, initialized on the rank=0
  process.
  
  Args:
      group_name: the unique user-specified group name.
docstr: Meet at the named actor store.
  
  Args:
      timeout_s: timeout in seconds.
  
  Return:
      None
docstr_tok: ["Meet","at","the","named","actor","store",".","Args",":","timeout_s",":","timeout","in","seconds",".","Return",":","None"]
code: def meet(self, timeout_s=180):
      """Meet at the named actor store.
  
      Args:
          timeout_s: timeout in seconds.
  
      Return:
          None
      """
      if timeout_s <= 0:
          raise ValueError(
              "The 'timeout' argument must be positive. "
              "Got '{}'.".format(timeout_s)
          )
  
      timeout_delta = datetime.timedelta(seconds=timeout_s)
      elapsed = datetime.timedelta(seconds=0)
      start_time = datetime.datetime.now()
      q, s = None, None
  
      if (
          self._store_type == "redis"
          or self._store_type == "ray_internal_kv"
      ):
          while elapsed < timeout_delta:
              try:
                  # I don't quite understand why we need gloo queue actor.
                  q = ray.get_actor("gloo_queue")
                  s = ray.get_actor(f"gloo_{self._group_name}_signal")
                  break
              except ValueError:
                  if self._context.rank == 0:
                      if not q:
                          ray.remote(gloo_util.glooQueue).options(
                              name="gloo_queue", lifetime="detached"
                          ).remote(1000)
                      if not s:
                          gloo_util.SignalActor.options(
                              name=f"gloo_{self._group_name}_signal",
                              lifetime="detached",
                          ).remote(self._context.size)
                  else:
                      time.sleep(0.1)
              elapsed = datetime.datetime.now() - start_time
          if not q:
              raise RuntimeError("Unable to get gloo_queue.")
          if self._context.rank == 0:
              ray.get(q.put_nowait.remote(self._group_name))
          while ray.get(q.index.remote(self._group_name)):
              time.sleep(0.1)
  
          self._context.connectFullMesh(self._store, self._device)
          ray.get(s.send.remote(self._context.rank))
          if self._context.rank == 0:
              ray.get(s.wait.remote())
              keys = []
              keys += [f"rank_{i}" for i in range(self._context.size)]
              keys += [f"{i}" for i in range(self._context.size)]
              self._store.delKeys(keys)
              group_name = ray.get(q.get_nowait.remote())
              assert group_name == self._group_name
              ray.kill(s)
  
imports: import datetime
  import logging
  import os
  import shutil
  import time
  import numpy
  import pygloo
  import ray
  from ray._private import ray_constants
  from ray.util.collective.collective_group import gloo_util
  from ray.util.collective.collective_group.base_collective_group import BaseGroup
  from ray.util.collective.const import get_store_name
  from ray.util.collective.types import AllGatherOptions, AllReduceOptions, Backend, BarrierOptions, BroadcastOptions, RecvOptions, ReduceOptions, ReduceScatterOptions, SendOptions
label_desc: Use image node_id 4 for calling the Rendezvous obj's underlying member method code with example usage: obj.meet(timeout_s) without return types