function
fun function(vocabularyPrefix: String = vPrefix, vocabularyNamespace: String = vNamespace, name: String, as: String? = null, visibility: String? = null, streamability: String? = null, overrideExtensionFunction: Boolean? = null, override: Boolean? = null, newEachTime: Boolean? = null, cache: Boolean? = null, attributes: Map<QName, String> = mapOf(), ns: Map<String, String> = mapOf(), init: XsltFunction.() -> Unit)(source)