showOpenDialog returns string[]

The showOpenDialog() function returns string[] as per https://github.com/atom/electron/blob/master/docs/api/dialog.md

github-electron/github-electron.d.ts

@@ -1157,11 +1157,11 @@ declare module GitHubElectron {
 			browserWindow?: BrowserWindow,
 			options?: OpenDialogOptions,
 			callback?: (fileNames: string[]) => void
-			): void;
+			): string[];
 		export function showOpenDialog(
 			options?: OpenDialogOptions,
 			callback?: (fileNames: string[]) => void
-			): void;
+			): string[];
 
 		interface OpenDialogOptions {
 			title?: string;