An interface that defines how to map each variant of [Metadata] to a value of type [T]..
public interface Visitor<out T>An interface that defines how to map each variant of [Metadata] to a value of type [T].
Maps an unknown variant of [Metadata] to a value of type [T].
Returns a mutable builder for constructing an instance of [UnionMember0]..
Returns an immutable instance of [UnionMember0].
Maps an unknown variant of [Metadata] to a value of type [T].
Maps an unknown variant of [Metadata] to a value of type [T].