text: import logging
  from stefuna import Worker
  
  logger = logging.getLogger('stefuna.example')
  
  
  class HelloWorker(Worker):
  
      def init(self):
          """Initialize the single instance in a worker"""
          pass
  
      def run_task(self, task_token, input_data):
          self.logger.debug('Worker in run_task')
  
          # Do some work!
  
          # Return value can be a string or a dict/array that
          # will be JSON stringified.
          return {"message": "Hello World"}
  