code: def get_attachable_volumes(self, start=0, count=-1, filter='', query='', sort='', scope_uris='', connections=''):
          uri = self.URI + '/attachable-volumes'
          if connections:
              uri += str('?' + 'connections=' + connections.__str__())
          return self._client.get_all(start, count, filter=filter, query=query, sort=sort, uri=uri, scope_uris=scope_uris)