text: import Users from 'meteor/vulcan:users';
  
  Users.addField([
    {
      fieldName: 'newsletter_subscribeToNewsletter',
      fieldSchema: {
        label: 'Subscribe to Newsletter',
        type: Boolean,
        optional: true,
        defaultValue: false,
        canCreate: ['members'],
        canUpdate: ['members'],
        canRead: ['guests'],
        control: 'NewsletterSubscribe',
        group: {
          name: 'newsletter',
          label: 'Newsletter',
          order: 3
        },
      }
    },
  ]);
  