@Override
    public T get() {
        try {
            latch.await();
            return output.get();
        } catch (InterruptedException e) {
            throw new RedisCommandInterruptedException(e);
        }
    }
@ Override public T get ( ) { try { latch . await ( ) ; return output . get ( ) ; } catch ( InterruptedException e ) { throw new RedisCommandInterruptedException ( e ) ; } }
Get the command output and if the command hasn't completed
yet, wait until it does.

@return The command output.