text: from threading import local
  
  
  _thread_locals = local()
  
  
  def set_cid(cid):
      """
      Sets the Correlation Id for a a request
      """
      setattr(_thread_locals, 'CID', cid)
  
  
  def get_cid():
      """
      Retrieves the currently set Correlation Id
      """
      return getattr(_thread_locals, 'CID', None)
  