SnapshotManager.py

class SnapshotManager:
    def __init__(self) -> None:
        super().__init__()

    def create_from_volume(self, id):
        raise NotImplementedError

    def get(self, id):
        raise NotImplementedError

    def list(self):
        raise NotImplementedError

    def delete(self, id):
        raise NotImplementedError