code: def get_exported_jobs(prometheus_client):
      return set(
          prometheus_client.get_label_values(label_name="exported_job")
      )
  
imports: from typing import Dict, Optional
  import requests
  from docarray import DocumentArray
  from opentelemetry.context.context import Context
  from prometheus_api_client import PrometheusConnect
  from jina import Executor, requests
label_desc: Use image node_id 11 for calling a global function with example usage: get_exported_jobs(prometheus_client) and returns: set