@classmethod
def base_url(klass, space_id, parent_resource_id, resource_url='entries',
    resource_id=None, environment_id=None):
    """
        Returns the URI for the snapshot.
        """
    return 'spaces/{0}{1}/{2}/{3}/snapshots/{4}'.format(space_id, 
        '/environments/{0}'.format(environment_id) if environment_id is not
        None else '', resource_url, parent_resource_id, resource_id if 
        resource_id is not None else '')
