code: def read_gist_file(self, gist):
          
          url = False
          files = gist.get("files")
          for gist_file in files:
              if gist_file.get("filename") == self.filename:
                  url = gist_file.get("raw_url")
                  break
          if url:
              self.output("Reading {}".format(url))
              response = self.requests.get(url)
              return response.content
docs: Returns the contents of file hosted inside a gist at GitHub.
          :param gist: (dict) gist parsed by GitHubTools._parse()
          :return: (bytes) content of a gist loaded from GitHub