Fix export structure

src/index.ts

@@ -1,27 +1,6 @@
-/**
- * Resolve after the given delay in milliseconds
- *
- * @param ms - The number of milliseconds to wait
- */
-export function sleep(ms: number) {
-    return new Promise(resolve => {
-        setTimeout(resolve, ms);
-    });
-}
-
-/**
- * Resolve once the given event emitter emits the specified event
- *
- * @param emitter - The event emitter to watch
- * @param event - The event to watch
- */
-export function once<T>(
-    emitter: NodeJS.EventEmitter,
-    event: string,
-): Promise<T> {
-    return new Promise(resolve => {
-        emitter.once(event, result => {
-            resolve(result);
-        });
-    });
-}
+import * as utils from "./utils";
+import * as stream from "./stream";
+export = {
+    ...utils,
+    stream,
+};