def save(self, filename=None):
        filename = Path(filename) if filename is not None else self.filename
        with filename.open("w") as f:
            f.write(self.yaml)
def create_on_device(self):
        resource = self.client.api.cm.shared.licensing.pools_s.pool.create(
            name=self.want.name,
            baseRegKey=self.want.base_key,
            method="AUTOMATIC"
        )
        return self._wait_for_license_pool_state_to_activate(resource)