-import * as Sequelize from 'sequelize'
-import { AllowNull, BelongsTo, Column, CreatedAt, ForeignKey, Model, Table } from 'sequelize-typescript'
+import { literal, Op } from 'sequelize'
+import { AllowNull, BelongsTo, Column, CreatedAt, DataType, ForeignKey, Model, Table } from 'sequelize-typescript'