Shaker/Avalonia/ShakerApp/ViewModels/PropertyAssociationAttribute.cs

using System;
using System.Collections.Generic;

namespace ShakerApp.ViewModels
{
    [AttributeUsage(AttributeTargets.Property)]
    public sealed class PropertyAssociationAttribute: Attribute 
    {
        public PropertyAssociationAttribute(params string[] strings) 
        {
            names.AddRange(strings);
        }
        private readonly List<string> names = new List<string>();
        public IReadOnlyList<string> Names => names;
    }
}