tree 467365c6cc6877e0f2a4e4a3d6e56b23409ed8d8
parent a572b1f345202c2c79987b7a4489e59044b12024
author Copybara <no-reply@google.com> 1655968056 -0700
committer Hui Liu <huiliu@google.com> 1657670541 +0000

Add drain RPC method to drain TF.

BUG=232606783,236941582
PiperOrigin-RevId: 456697011
Change-Id: Ifaa7c5ff95845c914933854bbad17a2f307665e3