Sequelize在模型上设置grometric点

Question

我正在使用sequelize / NodeJS，我需要在我的模型（Point）中有一个geomtric字段，我无法弄清楚如何使用它。

目前我有这个：

position: {
  type: DataTypes.GEOMETRY('Point'),
  allowNull: true
},

但我收到此错误：

TypeError: DataTypes.GEOMETRY is not a function
    at module.exports (C:\Users\FilipeCosta\Desktop\FloraApp\server\models\Foto.js:22:23)
    at Sequelize.module.exports.Sequelize.import (C:\Users\FilipeCosta\Desktop\FloraApp\server\node_modules\sequelize\lib\sequelize.js:626:32)
    at C:\Users\FilipeCosta\Desktop\FloraApp\server\models\index.js:21:33
    at Array.forEach (native)
    at Object.<anonymous> (C:\Users\FilipeCosta\Desktop\FloraApp\server\models\index.js:20:4)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Users\FilipeCosta\Desktop\FloraApp\server\app.js:9:14)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)

任何提示？