I'm having some trouble creating a PHLivePhotoEditingContext in order to apply filters using CoreImage.
However, in order to create a PHLivePhotoEditingContext the steps are to:
- Instantiate a 
PHAssetobject. - Call the 
requestContentEditingInput(with:completionHandler:) - Use the 
PHContentEditingInputto instantiate aPHLivePhotoEditingContext. 
However, my understanding of PHAsset is it's only available for apps and not Swift Playgrounds. Am I wrong in that assessment? If I'm wrong are there any ways to create a PHLivePhotoEditingContext to edit live photos in my swift playground (stored in the Resources directory as a .mov and .JPG? If I can't create a PHLivePhotoEditingContext are there alternate ways to efficiently apply Core Image filters onto live photos within my playground? 
I'm currently writing my code out in a playground but ultimately it will go in a playground book, so if it works in the playground book and not the playground that is fine.