xamarinmac 
namespace Foundation
{
    [Register("NSHTTPURLResponse", true)]
    public class NSHttpUrlResponse : NSUrlResponse
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("valueForHTTPHeaderField:")]
        [Introduced(PlatformName.WatchOS, 6, 0, PlatformArchitecture.All, null)]
        [Introduced(PlatformName.TvOS, 13, 0, PlatformArchitecture.All, null)]
        [Introduced(PlatformName.MacOSX, 10, 15, PlatformArchitecture.All, null)]
        [Introduced(PlatformName.iOS, 13, 0, PlatformArchitecture.All, null)]
        public virtual string? GetHttpHeaderValue(string! headerField);
    }
}
.NET
6.07.08.09.0
Information specific to xamarinmac
Assembly

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

Referencing

The API is automatically referenced.

Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API