feat: update close method documentation in DownloadEngineNodejs for clarity and improve SuggestedEventName type for better type safety

Author: ido-pluto

src/download/download-engine/engine/download-engine-nodejs.ts

@@ -113,8 +113,9 @@ export default class DownloadEngineNodejs<T extends DownloadEngineWriteStreamNod
 
     /**
      * Close the download engine
-     * @param deleteTempFile {boolean} - delete the temp file (when the download is **not finished**).
-     * @param deleteFile {boolean} - delete the **temp** or **final file** (clean everything up).
+     * @param options - close options.
+     * @param options.deleteTempFile - delete the temp file (when the download is **not finished**).
+     * @param options.deleteFile - delete the **temp** or **final file** (clean everything up).
      */
     override async close({deleteTempFile, deleteFile}: { deleteTempFile?: boolean, deleteFile?: boolean; } = {}): Promise<void> {
         await super.close();

src/utils/EventEmitter.ts

@@ -19,7 +19,7 @@ type KnownEventName<Events extends object> = Extract<{
 }[keyof Events], EventName>;
 type EventListener<Events extends object, Key extends EventName> = Key extends keyof Events ? Events[Key] extends AnyListener ? Events[Key] : never : AnyListener;
 type EventListenerArgs<Events extends object, Key extends EventName> = ListenerArgs<EventListener<Events, Key>>;
-type SuggestedEventName<Events extends object, ExtraEvents extends EventName> = KnownEventName<Events> | (ExtraEvents & object);
+type SuggestedEventName<Events extends object, ExtraEvents extends EventName> = KnownEventName<Events> | (ExtraEvents & NonNullable<unknown>);
 type HasBroadEventKeys<Events extends object> = string extends keyof Events ? true : symbol extends keyof Events ? true : false;
 type DefaultExtraEvents<Events extends object> = HasBroadEventKeys<Events> extends true ? EventName : never;