text: 'use strict';
  
  module.exports = {
    up: (queryInterface, Sequelize) => {
        return queryInterface.addColumn('scheduling',
          'concluded',
          Sequelize.STRING,
        );
    },
  
    down: (queryInterface, Sequelize) => {
      return queryInterface.removeColumn('scheduling', 'concluded',);
    }
  };
  