'Convenience method for getting scoped token.
This method doesn\'t do any token validation.
:param user: A dictionary with user information like \'username\',
\'password\', \'domain_id\'
:returns: An OpenStack token for further use
:rtype: str'

def get_scoped_token(self, user):

    r = self.get_scoped_token_response(user)
    return r.headers.get('X-Subject-Token')
