class_docstr: This publisher will handle failures and closures and will
  attempt to restart things
  
  delivery confirmations are used to track messages that have
  been sent and if they have been confirmed
code: def acknowledge(self, ack_id):
      with self._rmq_lock:
          self._rmq_msg = None
          self._rmq_id = None
          if self._channel is None:
              return None
          result = self._channel.basic_ack(delivery_tag=ack_id)
          return result
  
imports: import time
  import threading
  import pika
  from studio.storage.storage_setup import get_storage_verbose_level
  from studio.util import logs
label_desc: Use image node_id 33 for calling the RMQueue obj's underlying member method code with example usage: obj.acknowledge(ack_id) and returns: result, None