'Get endpoint group to project association.
:param endpoint_group_id: identity of endpoint group to retrieve
:type endpoint_group_id: string
:param project_id: identity of project to associate
:type project_id: string
:raises keystone.exception.NotFound: If the endpoint group to the
project association was not found.
:returns: a project endpoint group representation.'

@abc.abstractmethod
def get_endpoint_group_in_project(self, endpoint_group_id, project_id):

    raise exception.NotImplemented()
