Creates a temporary branch dedicated to the development of a NATS based driver. See [0] for the launchpad entry and [1] for the oslo-spec proposal. [0] https://blueprints.launchpad.net/oslo.messaging/+spec/nats-transport [1] https://review.opendev.org/#/c/692784/ Change-Id: Ic0b41a4c23ea293ae2bbbd9ae7d3d3adc180eb34