description text is only on one line it should be multiple lines like on the demo

my page.description text does not show my text on multiple lines only on one line this is my code.

```swift
lazy var bulletinManager: BLTNItemManager = {
page.descriptionLabel?.numberOfLines = 0
page.descriptionText = "Your Rquest was successfully. We will contact you if we have any questions."
page.actionButtonTitle = "Dismiss"
let greenColor = UIColor(red: 0.294, green: 0.85, blue: 0.392, alpha: 1)
page.appearance.actionButtonColor = greenColor
page.appearance.alternativeButtonTitleColor = greenColor
page.image = #imageLiteral(resourceName: "checkMark").tint(with: greenColor)

page.appearance.actionButtonTitleColor = .white
page.isDismissable = false
page.requiresCloseButton = false
page.imageView?.tintColor = greenColor

let rootItem: BLTNItem = page
let bulletin = BLTNItemManager(rootItem: page)
bulletin.backgroundViewStyle = .none
page.actionHandler = { (item: BLTNActionItem) in
bulletin.dismissBulletin(animated: true)
if self.sender != nil {
let views2:[UIView] = [self.mainViewController.searchThisLocationButton]
UIView.animate(views: views2, animations: [], reversed: false, initialAlpha: 0, finalAlpha: 1, delay: 0, animationInterval: 0.0, duration: 0.3) {
}
let views:[UIView] = [self.view]
UIView.animate(views: views, animations: [], reversed: false, initialAlpha: 1, finalAlpha: 0, delay: 0, animationInterval: 0.0, duration: 0.3) {
self.dismiss(animated: false, completion: {})
}

self.sender.view.undimmedView(MainView: self.mainViewController, parentView: self.sender, shouldChangePadding: true, pulleyPosition: self.mainViewController.pulleyLastPosition)
} else {
self.mainViewController.mapView.selectedMarker = nil
self.mainViewController.locationMarker.map = nil
self.mainViewController.mapView.clear()
self.mainViewController.locationMarker = GMSMarker()
self.mainViewController.shouldChangePadding = true
self.mainViewController.pulley.setDrawerPosition(position: self.mainViewController.pulleyLastPosition, animated: true)
let views2:[UIView] = [self.mainViewController.searchThisLocationButton]
UIView.animate(views: views2, animations: [], reversed: false, initialAlpha: 0, finalAlpha: 1, delay: 0, animationInterval: 0.0, duration: 0.3) {
}
self.mainViewController.bottomPulley.nearUserArray = self.mainViewController.mapView.myLocation
let views:[UIView] = [self.view]
UIView.animate(views: views, animations: [], reversed: false, initialAlpha: 1, finalAlpha: 0, delay: 0, animationInterval: 0.0, duration: 0.3) {
self.dismiss(animated: false, completion: {})
}

}

}
```