Returns current timeout of the given trigger or -1 if countdown is not in progress.
Important
The trigger could be local or remote but the result returned by this command will be for the current trigger timeout local to the client that executed the command.
See createTrigger for more info.
Triggers have their own schedule. If you create a trigger with timeout and try to read triggerTimeoutCurrent immediately it will return -1.
This is because the countdown will not start until the next scheduled trigger check is due, and this could take up to 0.5 seconds.