allow empty constructor

src/workflow-dispatcher.ts

@@ -95,7 +95,7 @@ export class WorkflowDispatcher<F extends (...args: any[]) => Promise<any>> {
     workersOrPromises: Array<F | Promise<F>>,
     options: DispatcherOptions = {},
   ) {
-    if (!workersOrPromises?.length) throw new Error('workers cannot be empty');
+    // if (!workersOrPromises?.length) throw new Error('workers cannot be empty');
 
     this.maxAttempts = options.maxAttempts ?? 3;
     this.backoffBaseMs = options.backoffBaseMs ?? 1000;