def isInSubstitutionGroup(self, elementQname, subsGrpQnames):
        return self.matchSubstitutionGroup(elementQname, {
                  qn:(qn is not None) for qn in (subsGrpQnames if hasattr(subsGrpQnames, '__iter__') else (subsGrpQnames,)) + (None,)})
Iterate across all children of this Element that are Elements.
dataset/ETHPy150Open Arelle/Arelle/arelle/ModelXbrl.py/ModelXbrl.isInSubstitutionGroup--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/words/xish/domish.py/Element.elements