lint

Author: hisasann

src/utilities/sleep.ts

@@ -2,7 +2,7 @@
  * sleep
  * @param {number} milliseconds
  */
-export function sleep(milliseconds: number) {
+export function sleep(milliseconds: number): Promise<void> {
   return new Promise<void>(resolve => {
     setTimeout(() => resolve(), milliseconds)
   })