public async Task <IActionResult> CheckOutDevicesAsync(SelectDevicesModel model)
{
ReturnUrl = HttpContext.Request.Headers["Referer"];
var devicesId = model.Devices.Where(d => d.IsSelected).Select(d => d.Id).ToArray();
await _checkouts.CheckOutDevices(model.EmployeeId, devicesId);
return(Redirect(ReturnUrl));
}