'Setup a ``P2PManifestationDeployer`` that will discover two
manifestations.
:return: Suitably configured ``P2PManifestationDeployer``.'

def _setup_datasets(self):

    self.successResultOf(self.volume_service.create(self.volume_service.get(_to_volume_name(self.DATASET_ID))))
    self.successResultOf(self.volume_service.create(self.volume_service.get(_to_volume_name(self.DATASET_ID2))))
    return P2PManifestationDeployer(u'example.com', self.volume_service, node_uuid=self.node_uuid)
