def get_ethereum_addres(self):
        ethereum_address = self.env['setting.connect'].search([('platforma','=','ethereum')])
        result_ethereum_dic = {}
        if ethereum_address:
            result_ethereum_dic.update({'ethereum_address':ethereum_address[0].ethereum_pk,
                                        'ethereum_interface': ethereum_address[0].ethereum_address,
                                        'address_node':ethereum_address[0].ethereum_node_address})
        return result_ethereum_dic