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using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

namespace SpotifyAPI.Web

{

public static class Util

{

public static string GetStringAttribute<T>(this T en, string separator) where T : struct, IConvertible

{

Enum e = (Enum)(object)en;

IEnumerable<StringAttribute> attributes =

Enum.GetValues(typeof(T))

.Cast<T>()

.Where(v => e.HasFlag((Enum)(object)v))

.Select(v => typeof(T).GetField(v.ToString(CultureInfo.InvariantCulture)))

.Select(f => f.GetCustomAttributes(typeof(StringAttribute), false)[0])

.Cast<StringAttribute>();

List<string> list = new List<string>();

attributes.ToList().ForEach(element => list.Add(element.Text));

return string.Join(separator, list);

}

}

public sealed class StringAttribute : Attribute

{

public string Text { get; set; }

public StringAttribute(string text)

{

Text = text;

}

}

}