def follow_link(self, link, **kwargs):
        try:
            href = link['href']
        except KeyError:
            raise exceptions.RoboError('Link element must have "href" '
                                       'attribute')
        self.open(self._build_url(href), **kwargs)
Returns whether the given node is a member of any group in the DAG.
dataset/ETHPy150Open jmcarp/robobrowser/robobrowser/browser.py/RoboBrowser.follow_link--crossover with--dataset/ETHPy150Open andrew-gardner/dependsworkflow/depends/depends_dag.py/DAG.nodeGroupCount