'Retrieve all the projects user belongs to.
:rtype: ``list`` of :class:`.OpenStackIdentityProject`'

def list_user_projects(self, user):

    path = ('/v3/users/%s/projects' % user.id)
    response = self.authenticated_request(path, method='GET')
    result = self._to_projects(data=response.object['projects'])
    return result
