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import abc from typing import Any, Dict class AutoAttachCloudInstance(metaclass=abc.ABCMeta): @property @abc.abstractmethod def identity_doc(self) -> Dict[str, Any]: """Return the identity document representing this cloud instance""" pass @property @abc.abstractmethod def cloud_type(self) -> str: """Return a string of the cloud type on which this instance runs""" pass @property @abc.abstractmethod def is_viable(self) -> bool: """Return True if the machine is a viable AutoAttachCloudInstance.""" pass @abc.abstractmethod def should_poll_for_pro_license(self) -> bool: """ Cloud-specific checks for whether the daemon should continously poll for Ubuntu Pro licenses. """ pass @abc.abstractmethod def is_pro_license_present(self, *, wait_for_change: bool) -> bool: """ Check for an Ubuntu Pro license """ pass