xamarinios 
namespace Photos
{
    [Introduced(PlatformName.iOS, 8, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.TvOS, 10, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.MacOSX, 10, 15, PlatformArchitecture.All, null)]
    [Register("PHAssetChangeRequest", true)]
    public class PHAssetChangeRequest : PHChangeRequest
    {
        [Obsolete("iOS9 does not allow creating an empty instance")]
        public PHAssetChangeRequest();
    }
}
Xamarin iOS
0.0
Information specific to xamarinios
Assembly

Xamarin.iOS , Version=0.0.0.0, PublicKeyToken=84e04ff9cfb79065

Referencing

The API is automatically referenced.

Obsolete iOS9 does not allow creating an empty instance
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API