async function get(req, res) {
    // cast shared boolean
    if (typeof req.query.shared === 'string') {
      req.query.shared = req.query.shared === 'true';
    }
    const calendars = await gladys.calendar.get(req.user.id, req.query);
    res.json(calendars);
  }
@api {get} /api/v1/calendar get
@apiName get
@apiGroup Calendar
@apiSuccessExample {json} Success-Example
[{
  "id": "b3eeebd8-58f2-4694-83a6-0b2cca871a5d",
  "name": "My calendar",
  "selector": "my-calendar"
  "description": "My personal events",
  "sync": true,
  "notify": false,
  "user_id": "e4e3f03e-60b9-485e-bc0a-c582b69089bd",
  "updated_at": "2019-05-09T03:14:29.820Z",
  "created_at": "2019-05-09T03:14:29.820Z"
}]