这个视频的出处和名字代码如下
<SY5E , c .o m'> //地址输入
val maybeUser = loggedIn.map(_.user)
documentReadResponse(documentId, maybeUser, { case (doc, accesslevel) =>
logDocumentView(doc.document, None, accesslevel)
annotations.countByDocId(documentId).map { documentAnnotationCount
