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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 get_complexes(self):
 """Extract INDRA Complex Statements from the BioPAX model. This method searches for org.biopax.paxtools.model.level3.Complex objects which represent molecular complexes. It doesn't reuse BioPAX Pattern's org.biopax.paxtools.pattern.PatternBox.inComplexWith query since that retrieves pairs of complex members rather than the full complex. """

        for obj in self.model.getObjects().toArray():
            bpe = _cast_biopax_element(obj)
            if not _is_complex(bpe):
                continue
            ev = self._get_evidence(bpe)

            members = self._get_complex_members(bpe)
            if members is not None:
                if len(members) > 10:
                    logger.debug('Skipping complex with more than 10 members.')
                    continue
                complexes = _get_combinations(members)
                for c in complexes:
                    self.statements.append(decode_obj(Complex(c, ev),
                                                      encoding='utf-8'))