Method apply

celery/canvas.py:2158–2167

(self, args=None, kwargs=None,
              propagate=True, body=None, **options)

        return self.run(tasks, body, args, task_id=task_id, kwargs=kwargs, **merged_options)

    def apply(self, args=None, kwargs=None,
              propagate=True, body=None, **options):
        args = args if args else ()
        kwargs = kwargs if kwargs else {}
        body = self.body if body is None else body
        tasks = (self.tasks.clone() if isinstance(self.tasks, group)
                 else group(self.tasks, app=self.app))
        return body.apply(
            args=(tasks.apply(args, kwargs).get(propagate=propagate),),
        )

    @classmethod
    def _descend(cls, sig_obj):