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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 converged_electronic(self):
 """ Checks that electronic step convergence has been reached in the final ionic step """

        final_esteps = self.ionic_steps[-1]["electronic_steps"]
        if 'LEPSILON' in self.incar and self.incar['LEPSILON']:
            i = 1
            to_check = set(['e_wo_entrp', 'e_fr_energy', 'e_0_energy'])
            while set(final_esteps[i].keys()) == to_check:
                i += 1
            return i + 1 != self.parameters["NELM"]
        return len(final_esteps) < self.parameters["NELM"]