GetFields.cs

static void Main(string[] args)
{
    void DisplayAttributes()
    {
        var fields = new SomeAttribute()
          .GetType()
          .GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic));
    
        foreach (var field in fields            
        {
            Console.WriteLine(field.Name);
        }
    }

    typeof(SomeClass).GetCustomAttributes(false);

    DisplayAttributes();
    DisplayAttributes();
}