datalaoder

[AttributeUsage(AttributeTargets.Property | AttributeTargets.Method)]
    public abstract class DataLoaderAttribute : ObjectFieldDescriptorAttribute
    {
        public static MethodInfo ConfigureMethod = typeof(DataLoaderAttribute)
            .GetMethod(nameof(DataLoaderAttribute.Configure));
        public DataLoaderAttribute(Type dataloaderType)
        {
            DataloaderType = dataloaderType;
        }
        public Type DataloaderType { get; }
        public override void OnConfigure(
            IDescriptorContext context,
            IObjectFieldDescriptor descriptor,
            MemberInfo member)
        {
            var args = DataloaderType.GetInterface("IDataLoader")?.GetGenericArguments()
                 ?? throw new InvalidOperationException();
            ConfigureMethod.MakeGenericMethod(DataloaderType, args[1], args[0])
                .Invoke(this, new object[] { context, descriptor, member });
        }
        public void Configure<TLoader, TPerson, TKey>(
            IDescriptorContext context,
            IObjectFieldDescriptor descriptor,
            MemberInfo member)
        {
        } 
    }