`migrate` message (server)

A message sent from the Ribbon to indicate that a client should migrate to another websocket endpoint.

Format

(object):
- (integer) id: The id of this message.
- (string) command: Always "migrate".
- (object) data:
  - (string) endpoint: The websocket endpoint to reconnect to.
  - (string) name: The name of the worker.
  - (string) flag: The ISO 3166-1 country code of the worker (presumably its location).

I don't know why the worker data isn't its own object.