docs: def _get_connection(self, uri, headers=None):
      """Opens a socket connection to the server to set up an HTTP request.
      
      Args:
        uri: The full URL for the request as a Uri object.
        headers: A dict of string pairs containing the HTTP headers for the
            request.
      """
      connection = None
      if uri.scheme == 'https':
        if not uri.port:
          connection = httplib.HTTPSConnection(uri.host)
        else:
          connection = httplib.HTTPSConnection(uri.host, int(uri.port))
      else:
        if not uri.port:
          connection = httplib.HTTPConnection(uri.host)
        else:
          connection = httplib.HTTPConnection(uri.host, int(uri.port))
      return connection