Alloy + Typescript でModelを作成する ref: http://qiita.com/TatsuoWatanabe/items/edda7fdce6fba0c86caa

IExportableModel.ts

interface IExportableModel {
    config: {
        columns: any;
        adapter: {
            type: any;
            collection_name: any
        }
    };

    exportsDefinition: {
        config: typeof config;
        extendModel: (Model: Backbone.Model) => Backbone.Model;
        extendCollection: (Collection: Backbone.Collection) => Backbone.Collection;
    };
}

Todo.js

exports.definition = {
  config: {
    columns: {
      "task": "text",
      "limitTime": "text",
      "done": "integer"
    },
    adapter: {
      type: "sql",
      collection_name: "Todo"
    }
  },
  extendModel: function (Model) {
    _.extend(Model.prototype, {
      // extended functions and properties go here
    });

    return Model;
  },
  extendCollection: function (Collection) {
    _.extend(Collection.prototype, {
      // extended functions and properties go here
    });

    return Collection;
  }
};

Todo.ts

extendModel: function(Model: Backbone.Model) {
    _.extend(Model.prototype, Todo.prototype);
    return Model;
}