A Builder that creates seqs, where every complex type is of type childBuilder
A Builder that creates seqs, where every complex type child is also a seq
A builder that will create seqs, where complex types are built by childBuilder.getOrElse(this)
A builder that will create seqs, where complex types are built by childBuilder.getOrElse(this)
the type of this seq's complex child elements. If it is Nothing, it will default to making more SeqBuilders
A builder that creates seqs