Hi, QA team defines stable interfaces of Tempest for using them from outside(tempest plugins). We are removing a deprecated call_until_true() method from unstable module(test.py of Tempest), but some projects are still using it. We have prepared patches[1] for soft-landing on these projects, hopefully these patches are merged before a Tempest patch[2] which removes the method. Thanks Ken Ohmichi --- [1]: https://review.openstack.org/#/q/status:open+topic:switch-call_until_true [2]: https://review.openstack.org/#/c/431701/