new_contents: from dolt import Dolt
  
  class GitHub(Dolt):
      def __init__(self, api_version="v2", *args, **kwargs):
          super(GitHub, self).__init__(*args, **kwargs)
          self._api_url = "https://github.com/api/%s/json" % api_version
          self._url_template = "%(domain)s/%(generated_url)s"
  
  
subject: add basic read-only version of GitHub wrapper