def execute(self, schema):
        if schema.builtin(self.ref):
            name = self.ref[0]
            b = Factory.create(schema, name)
            #log.debug('%s, found builtin (%s)', self.id, name)
            return b
        result = None
        for d in (schema.elements, schema.types):
            result = d.get(self.ref)
            if self.filter(result):
                result = None
            else:
                break
        if result != None:
            eq = ElementQuery(self.ref)
            eq.history = self.history
            result = eq.execute(schema)
        return self.result(result)
dataset/ETHPy150Open jumoconnect/openjumo/jumodjango/lib/suds/xsd/query.py/BlindQuery.execute/operator `is` -> `!=`