CalDavSynchronizer.DataAccess.CardDavDataAccess.ListAddressBooks C# (CSharp) Метод

    private Task<XmlDocumentWithNamespaceManager> ListAddressBooks (Uri url)
    {
      return _webDavClient.ExecuteWebDavRequestAndReadResponse (
          url,
          "PROPFIND",
          1,
          null,
          null,
          "application/xml",
          @"<?xml version='1.0'?>
                        <D:propfind xmlns:D=""DAV:"">
                          <D:prop>
                              <D:resourcetype />
                              <D:displayname />
                          </D:prop>
                        </D:propfind>
                 "
          );
    }