1 <?xml version="1.0" encoding="UTF-8"?>
2 <package version="2.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="BookId">
3 <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf">
4 <dc:identifier opf:scheme="URI" id="BookId">test</dc:identifier>