docs: def using(self, tube):
          """Context-manager to insert jobs into a specific tube
  
          :param tube: Tube to insert to
  
          Yields out an instance of :class:`BeanstalkInsertingProxy` to insert items into that tube
  
          .. seealso::
  
             :func:`use()`
                Change the default tube
  
             :func:`put_job()`
                Put a job into whatever the current tube is
  
             :func:`put_job_into()`
                Put a job into a specific tube
          """
          try:
              current_tube = self.current_tube
              self.use(tube)
              yield BeanstalkInsertingProxy(self, tube)
          finally:
              self.use(current_tube)