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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _check_nodegroup_minions(self, expr, greedy):  # pylint: disable=unused-argument
        '''
        Return minions found by looking at nodegroups
        '''
        return self._check_compound_minions(nodegroup_comp(expr, self.opts['nodegroups']),
            DEFAULT_TARGET_DELIM,
            greedy)