Renamed revoked_headers to revoked_stamps. 
from celery.utils.objects import Bunch


class test_Bunch:

    def test(self):
        x = Bunch(foo='foo', bar=2)
        assert x.foo == 'foo'
        assert x.bar == 2

from celery.utils.objects import Bunch


class test_Bunch:

    def test(self):
        x = Bunch(foo='foo', bar=2)
        assert x.foo == 'foo'
        assert x.bar == 2
