text: CELERY_TASK_SERIALIZER = 'json'
  CELERY_RESULT_SERIALIZER = 'json'
  CELERY_ACCEPT_CONTENT = ['json']
  CELERY_ENABLE_UTC = True
  CELERY_IGNORE_RESULT = False
  # CELERY_ANNOTATIONS = {
  #    'tasks.add': {'rate_limit': '10/m'}
  # }
  
  