Correct Usage of Interactive Feature

Hi all, I have tried interactive feature in following ways: a) Simply adding interactive to tasks: It does nothing.[1][2] b) Setting interactive to 'true': It does nothing as well but this message is logged: 'Running task interactive...' [3][4] c) Using interactive_on_error or interactive-on-error: Throws " No module named 'tasks.interactive_on_error' " [5][6] Please let me know if I have used them correctly. [1] http://qa-proxy.ceph.com/teuthology/varsha-2020-07-09_12:53:59-rados-wip-va… [2] https://github.com/varshar16/ceph/commit/2d2846da31ffbd7c42f880117dbacc53e7… [3] http://qa-proxy.ceph.com/teuthology/varsha-2020-07-10_06:40:30-rados-wip-va… [4] https://github.com/varshar16/ceph/commit/ad36b173ef35198934e354a784c7f0db16… [5] http://qa-proxy.ceph.com/teuthology/varsha-2020-07-10_08:21:51-rados-wip-va… [6] https://github.com/varshar16/ceph/commit/e899bcdbf1f0c037b1008c7f912f9e8d7d… Thanks, Varsha