mergeSource
fun mergeSource(vocabularyPrefix: String = vPrefix, vocabularyNamespace: String = vNamespace, select: String, name: String? = null, forEachItem: String? = null, forEachStream: String? = null, streamable: Boolean? = null, useAccumulators: String? = null, sortBeforeMerge: Boolean? = null, validation: String? = null, type: String? = null, forEachSource: String? = null, attributes: Map<QName, String> = mapOf(), ns: Map<String, String> = mapOf(), init: XsltMergeSource.() -> Unit)(source)