code: def get_signout_token(self):
          
          response = self._send(http_method='GET',
                                location_id='be39e83c-7529-45e9-9c67-0410885880da',
                                version='5.0-preview.1')
          return self._deserialize('AccessTokenResult', response)
docs: GetSignoutToken.
          [Preview API]
          :rtype: :class:`<AccessTokenResult> <azure.devops.v5_0.identity.models.AccessTokenResult>`