@abc.abstractmethod<EOL><INDENT>def get_provider_links(self):<DEDENT>
return<EOL>
Gets the ``Resources`` representing the source of this asset in order from the most recent provider to the originating source.

        :return: the provider chain
        :rtype: ``osid.resource.ResourceList``
        :raise: ``OperationFailed`` -- unable to complete request

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