/// <summary>
/// Mutates the contents of this instance and get the mutated instance.
/// </summary>
/// <param name="action">The action to mutate the record.</param>
/// <returns>The mutated instance.</returns>
public CsvRecord Mutate(Action <Mutable> action)
{
var mutable = new Mutable(this);
action(mutable);
return(mutable.ToRecord());
}