code: def login(self, role, jwt, use_token=True, mount_point=DEFAULT_MOUNT_POINT):
          
          params = {
              'role': role,
              'jwt': jwt,
          }
          api_path = '/v1/auth/{mount_point}/login'.format(mount_point=mount_point)
          response = self._adapter.login(
              url=api_path,
              use_token=use_token,
              json=params,
          )
          return response
docs: Login to retrieve a Vault token via the GCP auth method.
  
          This endpoint takes a signed JSON Web Token (JWT) and a role name for some entity. It verifies the JWT
              signature with Google Cloud to authenticate that entity and then authorizes the entity for the given role.
  
          Supported methods:
              POST: /auth/{mount_point}/login. Produces: 200 application/json
  
  
          :param role: The name of the role against which the login is being attempted.
          :type role: str | unicode
          :param jwt: A signed JSON web token
          :type jwt: str | unicode
          :param use_token: if True, uses the token in the response received from the auth request to set the "token"
              attribute on the the :py:meth:`hvac.adapters.Adapter` instance under the _adapater Client attribute.
          :type use_token: bool
          :param mount_point: The "path" the method/backend was mounted on.
          :type mount_point: str | unicode
          :return: The JSON response of the request.
          :rtype: dict