docs: function createPage(ref, user) {
    const NOW = new Date().toISOString(),
      users = [userOrRobot(user)],
      meta = {
        createdAt: NOW,
        archived: false,
        published: false,
        publishTime: null,
        updateTime: null,
        urlHistory: [],
        firstPublishTime: null,
        url: '',
        title: '',
        authors: [],
        users,
        history: [{action: 'create', timestamp: NOW, users }],
        siteSlug: sitesService.getSiteFromPrefix(ref.substring(0, ref.indexOf('/_pages'))).slug
      };
  
    return putMeta(ref, meta);
  }