docs: def _getToken(self):
          """
          Second step in authorizing with Reader.
          Sends authorized request to Reader token URL and returns a token value.
  
          Returns token or raises IOError on error.
          """
          headers = {'Authorization':'GoogleLogin auth=%s' % self.auth_token}
          req = requests.get(ReaderUrl.API_URL + 'token', headers=headers)
          if req.status_code != 200:
              raise IOError("Error getting the Reader token.")
          return req.content