docs: def steal_page(self, page):
          """
          Steal a page from another document
          """
          if page.doc == self:
              return
          self.fs.mkdir_p(self.path)
  
          new_page = ImgPage(self, self.nb_pages)
          logger.info("%s --> %s" % (str(page), str(new_page)))
          new_page._steal_content(page)