public static TouchstoneWriterCore Create(TouchstoneWriter parent)
{
return(parent.Keywords.Version switch
{
FileVersion.One => new TouchstoneWriterCoreV1(parent),
FileVersion.Two => new TouchstoneWriterCoreV2(parent),
_ => throw new NotImplementedException(),
});
protected TouchstoneWriterCore(TouchstoneWriter parent) => tsWriter = parent;