https://github.com/ably/ably-ruby/blob/6c872096abf4eabbf23843a7bc378483a2629341/lib/ably/modules/state_machine.rb#L44 The state machine `InvalidStateChange` error uses the error code `80020` [which is defined as "maximum connection message rate exceeded (publish)"](https://github.com/ably/ably-common/blob/master/protocol/errors.json#L102)
ably-ruby/lib/ably/modules/state_machine.rb
Line 44 in 6c87209
The state machine
InvalidStateChangeerror uses the error code80020which is defined as "maximum connection message rate exceeded (publish)"