paralleldispatcher.go
func NewParallelDispatcher(handlers []Handler) Dispatcher {
	return &ParallelDispatcher{
		handlers: handlers,
		mutex:    sync.RWMutex{},
	}
}
func NewParallelDispatcher(handlers []Handler) Dispatcher {
	return &ParallelDispatcher{
		handlers: handlers,
		mutex:    sync.RWMutex{},
	}
}
// NewParallelDispatcher creates a new PrallelDispatcher with the given handlers