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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 group_attrib(self):
        '''
        return a namedtuple containing all attributes attached
        to groups of which the given series is a member
        for each group of which the series is a member
        '''
        group_attributes = [g.attrib for g in self.dataset.groups if self in g]
        if group_attributes:
            return concat_namedtuples(*group_attributes)