final defroot[A](init: (S.Tx) ⇒ A)(implicit serializer: Serializer[S.Tx, Unit, A]): Source[S.Tx, A]
Reads the root object representing the stored data structure,
or provides a newly initialized one via the init argument,
if no root has been stored yet.
Reads the root object representing the stored data structure,
or provides a newly initialized one via the init argument,
if no root has been stored yet.