/// <summary>
/// Converts a <see cref="ISpread{T}"/> to a <see cref="string"/> of comma seperated values.
/// </summary>
/// <param name="spread">The <see cref="ISpread{T}"/> to convert to a <see cref="string"/>.</param>
/// <returns>A comma seperated <see cref="string"/> of <see cref="ISpread{T}"/>.</returns>
public static string ToString <T>(this ISpread <T> spread)
{
return(spread.AsString());
}