/// <summary>Returns a dictionary that maps the string representation of each of the named constants of
/// <typeparamref name="TEnum"/> to its named constant.</summary>
/// <typeparam name="TEnum">The enumeration type.</typeparam>
/// <exception cref="ArgumentException"><typeparamref name="TEnum"/> is not an Enum.</exception>
public static IReadOnlyDictionary <string, TEnum> GetNameValueMap <TEnum>()
where TEnum : struct
{
return(EnumCache <TEnum> .GetNameValueMap());
}