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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def kill(self, block=False, reason="unknown"):
 """ Forcefully kill all greenlets associated with this job """


        current_greenletid = id(gevent.getcurrent())

        trace = "Job killed: %s" % reason
        for greenlet, job in context._GLOBAL_CONTEXT["greenlets"].values():
            greenletid = id(greenlet)
            if job and job.id == self.id and greenletid != current_greenletid:
                greenlet.kill(block=block)
                trace += "\n\n--- Greenlet %s ---\n" % greenletid
                trace += "".join(traceback.format_stack(greenlet.gr_frame))
            context._GLOBAL_CONTEXT["greenlets"].pop(greenletid, None)

        if reason == "timeout" and self.data["status"] != "timeout":
            updates = {
                "exceptiontype": "TimeoutInterrupt",
                "traceback": trace
            }
            self._save_status("timeout", updates=updates, exception=False)