def __init__(self, package, version):
        """Construct a new requirement.

        :param package: the package name.
        :param version: a semver compatible version specification.
        """
        self.package = package
        self.version = version
        if self.version and not re.match(r"[<=>~]", version[:2]):
            self.version = "=={}".format(self.version)
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)