Use @type

package.json

@@ -65,6 +65,7 @@
 		"@types/ms": "0.7.30",
 		"@types/multer": "1.3.6",
 		"@types/node": "9.6.0",
+		"@types/nopt": "3.0.29",
 		"@types/proxy-addr": "2.0.0",
 		"@types/pug": "2.0.4",
 		"@types/qrcode": "0.8.1",
@@ -149,10 +150,10 @@
 		"morgan": "1.9.0",
 		"ms": "2.1.1",
 		"multer": "1.3.0",
-		"nopt": "4.0.1",
 		"nan": "2.10.0",
 		"node-sass": "4.8.3",
 		"node-sass-json-importer": "3.1.6",
+		"nopt": "4.0.1",
 		"nprogress": "0.2.0",
 		"object-assign-deep": "0.3.1",
 		"on-build-webpack": "0.1.0",

src/parse-opt.ts

@@ -1,4 +1,4 @@
-const nopt = require('nopt');
+import * as nopt from 'nopt';
 
 export default (vector, index) => {
 	const parsed = nopt({