from odoo import models, api class PosConfig(models.Model): _inherit = 'pos.config' @api.model def _load_pos_data_read(self, records, config): data = super()._load_pos_data_read(records, config) if data: l10n_pe_edi_refund_reason = self.env['ir.model.fields']._get('account.move', 'l10n_pe_edi_refund_reason') data[0]['_l10n_pe_edi_refund_reason'] = [ {'value': s.value, 'name': s.name} for s in l10n_pe_edi_refund_reason.selection_ids ] return data