Create vault if it doesn't exist (if desired)

        except CalledProcessError:

            return False

    def open(self, password: str) -> None:

    def open(self, password: str, create_if_not_exists: bool = True) -> None:

        if create_if_not_exists and not self.exists:

            self.create(password)

        self._cryptsetup_open(password)

        self._mount()