title: How to set primary key type to UUID via Sequelize CLI
body: <p>I'm creating a DB model via <a href="https://github.com/sequelize/cli" rel="noreferrer">Sequelize CLI</a> with this command:</p>
  
  <pre class="lang-sh prettyprint-override"><code>sequelize model:create --name User --attributes "firstname:string, lastname:string"
  </code></pre>
  
  <p>This creates the corresponding migration script:</p>
  
  <pre class="lang-js prettyprint-override"><code>'use strict';
  module.exports = {
    up: function(queryInterface, Sequelize) {
      return queryInterface.createTable('Users', {
        id: {
          allowNull: false,
          autoIncrement: true,
          primaryKey: true,
          type: Sequelize.INTEGER
        },
        firstname: {
          type: Sequelize.STRING
        },
        lastname: {
          type: Sequelize.STRING
        },
        createdAt: {
          allowNull: false,
          type: Sequelize.DATE
        },
        updatedAt: {
          allowNull: false,
          type: Sequelize.DATE
        }
      });
    },
    down: function(queryInterface, Sequelize) {
      return queryInterface.dropTable('Users');
    }
  };
  </code></pre>
  
  <p>As shown, the primary key is set to <code>integer</code>. </p>
  
  <p>Is there a way to default the CLI to use <code>UUID</code> instead?</p>