code: def dequeue(self, acknowledge=True, timeout=0):
      wait_step = 1
      for waited in range(0, timeout + wait_step, wait_step):
          response = self._client.receive_message(
              QueueUrl=self.queue_url
          )
          msgs = response.get("Messages", [])
          if any(msgs):
              break
          if waited == timeout:
              return None
          self.logger.info(
              "No messages found, sleeping for %s "
              " (total sleep time %s)",
              wait_step,
              waited,
          )
          time.sleep(wait_step)
  
      msgs = response["Messages"]
  
      if not any(msgs):
          return None
  
      retval = msgs[0]
  
      if acknowledge:
          self.acknowledge(retval["ReceiptHandle"])
          self.logger.debug(
              "Message %s received and acknowledged",
              retval["MessageId"],
          )
  
          return retval["Body"]
  
      self.logger.debug(
          "Message %s received, ack_id %s",
          retval["MessageId"],
          retval["ReceiptHandle"],
      )
      return (retval["Body"], retval["ReceiptHandle"])
  
file_path: studio/studio/queues/sqs_queue.py
imports: import time
  from typing import Dict
  import boto3
  from studio.credentials.credentials import Credentials, KEY_CREDENTIALS
  from studio.storage.storage_setup import get_storage_verbose_level
  from studio.util import logs, util
label_desc: Use image node_id 8 for calling the SQSQueue obj's underlying member method code with example usage: obj.dequeue(acknowledge, timeout) and returns: retval,  retval, None, retval, None