-import { waterfall } from 'async'
-
-// utils = { transaction, queryInterface, sequelize, Sequelize }
-function up (utils, finalCallback) {
+import * as Sequelize from 'sequelize'
+import * as Promise from 'bluebird'
+
+function up (utils: {
+ transaction: Sequelize.Transaction,
+ queryInterface: Sequelize.QueryInterface,
+ sequelize: Sequelize.Sequelize
+}): Promise<void> {