import * as Sequelize from 'sequelize' async function up (utils: { transaction: Sequelize.Transaction queryInterface: Sequelize.QueryInterface sequelize: Sequelize.Sequelize db: any }): Promise { const q = utils.queryInterface const data = { type: Sequelize.STRING(3000), allowNull: false } await q.changeColumn('Videos', 'description', data) } function down (options) { throw new Error('Not implemented.') } export { up, down }