NewDispatcher creates a new dispatcher with a buffered channel and a wait group.

NewWorkerPool creates an instance of WorkerPool.

ReqHandler is a map of request handlers, keyed by request type.

Request represents a request to be processed by a worker.

Worker represents a worker that processes requests.

Dispatcher is an interface for managing the worker pool.

WorkerLauncher is an interface for launching workers.

WorkerPool defines the contract for a worker pool implementation.

RequestHandler defines a function type for handling requests.