c# brackets statement after semaphore.Wait() without condition or header

Question

I came across the following code in c#:

        semaphore.Wait();
        {
            HandleRateLimit(region);
        }
        semaphore.Release();

(source)

I was wondering, do the brackets around the HandleRateLimit(...) call have any special meaning? If not, why would someone write code that way?

Answer 1

Brackets have nothing to do with semaphores. The idea was, probably, to make it more readable and to point out critical section.