@abc.abstractmethod<EOL><INDENT>def can_manage_package_versions(self):<DEDENT>
return<EOL>
Tests if this user can manage package versions.

        A return of true does not guarantee successful authorization. A
        return of false indicates that it is known version methods will
        result in a ``PermissionDenied``. This is intended as a hint to
        an application that may opt not to offer delete operations to an
        unauthorized user.

        :return: ``false`` if package versioning is not authorized, ``true`` otherwise
        :rtype: ``boolean``


        *compliance: mandatory -- This method must be implemented.*