code: def _enqueue_init_updates(self):
          
          assert self.state.bgp_state == const.BGP_FSM_ESTABLISHED
          if self.is_mbgp_cap_valid(RF_RTC_UC):
              # Enqueues all best-RTC_NLRIs to be sent as initial update to this
              # peer.
              self._peer_manager.comm_all_rt_nlris(self)
              self._schedule_sending_init_updates()
          else:
              # Enqueues all best-path to be sent as initial update to this peer
              # expect for RTC route-family.
              tm = self._core_service.table_manager
              self.comm_all_best_paths(tm.global_tables)
docs: Enqueues current routes to be shared with this peer.