Avalonia/src/Browser/Avalonia.Browser/Interop/NavigationHelper.cs

using System;
using System.Runtime.InteropServices.JavaScript;

namespace Avalonia.Browser.Interop;

internal static partial class NavigationHelper
{
    [JSImport("NavigationHelper.addBackHandler", AvaloniaModule.MainModuleName)]
    public static partial void AddBackHandler([JSMarshalAs<JSType.Function<JSType.Boolean>>] Func<bool> backHandlerCallback);
}