def symlink_list(self, load):
        if 'env' in load:
            salt.utils.warn_until(
                'Oxygen',
                'Parameter \'env\' has been detected in the argument list.  This '
                'parameter is no longer used and has been replaced by \'saltenv\' '
                'as of Salt Carbon.  This warning will be removed in Salt Oxygen.'
                )
            load.pop('env')

        ret = {}
        if 'saltenv' not in load:
            return {}
        if not isinstance(load['saltenv'], six.string_types):
            load['saltenv'] = six.text_type(load['saltenv'])

        for fsb in self._gen_back(load.pop('fsbackend', None)):
            symlstr = '{0}.symlink_list'.format(fsb)
            if symlstr in self.servers:
                ret = self.servers[symlstr](load)
        # upgrade all set elements to a common encoding
        ret = dict([
            (salt.utils.locales.sdecode(x), salt.utils.locales.sdecode(y)) for x, y in ret.items()
        ])
        # some *fs do not handle prefix. Ensure it is filtered
        prefix = load.get('prefix', '').strip('/')
        if prefix != '':
            ret = dict([
                (x, y) for x, y in six.iteritems(ret) if x.startswith(prefix)
            ])
        return ret
Set the notification method.
dataset/ETHPy150Open saltstack/salt/salt/fileserver/__init__.py/Fileserver.symlink_list--crossover with--dataset/ETHPy150Open PureMVC/puremvc-python-standard-framework/src/puremvc/patterns/observer.py/Observer.setNotifyMethod