code: def iter_pages_builds(self, number=-1, etag=None):
          
          url = self._build_url('pages', 'builds', base_url=self._api)
          return self._iter(int(number), url, PagesBuild, etag=etag)
docs: Iterate over pages builds of this repository.
  
          :returns: generator of :class:`PagesBuild
              <github3.repos.pages.PagesBuild>`