import * as Sequelize from 'sequelize' async function up (utils: { transaction: Sequelize.Transaction queryInterface: Sequelize.QueryInterface sequelize: Sequelize.Sequelize }): Promise { { const description = { type: Sequelize.STRING(1000), allowNull: true } await utils.queryInterface.changeColumn('videoPlaylist', 'description', description) } } function down (options) { throw new Error('Not implemented.') } export { up, down }