private void transitToSuspend() {
        log.info("Suspended from {}", state());
        transitionTo(State.SUSPENDED);
        timeCurrentIdlingStarted = Optional.of(System.currentTimeMillis());
    }
Produces a string representation containing useful information about a Task starting with the given indent.
This is useful in debugging scenarios.

@return A string representation of the Task instance.
streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamTask.java