def pauseProducing(self):
        log.msg(format="Pause producing for %(callback)s.",
                       callback=self.callback)
        self.paused = True
The environment needs an upgrade if there is no [ticket-workflow]
dataset/ETHPy150Open mochi/udplog/udplog/twisted.py/QueueProducer.pauseProducing--crossover with--dataset/ETHPy150Open edgewall/trac/trac/ticket/default_workflow.py/ConfigurableTicketWorkflow.environment_needs_upgrade