public void UnselectAllNotifications()
{
// Sign into Mars Portal
SignIn.OpenForm();
//Fill in credentials
SignIn.FillCredentials(7);
NotificationPage.ClickNotifications();
NotificationPage.SeeAllNotifications();
//Click on select all notifications
NotificationPage.SelectAllServiceRequests();
//Click on unselect all notifications
NotificationPage.UnselectAllServiceRequests();
//Assertion
NotificationPage.UnselectAllAssertion();
}