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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 render_done(self, form, **kwargs):
 """ This method gets called when all forms passed. The method should also re-validate all steps to prevent manipulation. If any form don't validate, `render_revalidation_failure` should get called. If everything is fine call `done`. """

        final_form_list = []
        # walk through the form list and try to validate the data again.
        for form_key in self.get_form_list():
            form_obj = self.get_form(step=form_key,
                data=self.storage.get_step_data(form_key),
                files=self.storage.get_step_files(form_key))
            if not form_obj.is_valid():
                return self.render_revalidation_failure(form_key, form_obj, **kwargs)
            final_form_list.append(form_obj)

        # render the done view and reset the wizard before returning the
        # response. This is needed to prevent from rendering done with the
        # same data twice.
        done_response = self.done(final_form_list, **kwargs)
        self.storage.reset()
        return done_response