'Updates instance\'s classic_link_enabled attribute
:rtype: bool
:return: self.classic_link_enabled after update has occurred.'

def update_classic_link_enabled(self, validate=False, dry_run=False):

    self._get_status_then_update_vpc(self.connection.get_all_classic_link_vpcs, validate=validate, dry_run=dry_run)
    return self.classic_link_enabled
