code: public static void mergeWorkerContext(TracyThreadContext workerTracyThreadContext) {
          TracyThreadContext ctx = threadContext.get();
          if (isValidContext(ctx)) {
              ctx.mergeChildContext(workerTracyThreadContext);
          }
      }
docs: When called from the requester thread, will merge worker TracyThreadContext into the
  requester TracyThreadContext
  @return worker TracyThreadContext