def get_account_lines(self, data):
    lines = []
    account_report = self.env['account.financial.report'].search([('id', '=', data['account_report_id'][0])])
    child_reports = account_report._get_children_by_order()
    res = self.with_context(data.get('used_context'))._compute_report_balance(child_reports)
    if data['enable_filter']:
        comparison_res = self.with_context(data.get('comparison_context'))._compute_report_balance(child_reports)
        for report_id, value in comparison_res.items():
            res[report_id]['comp_bal'] = value['balance']
            report_acc = res[report_id].get('account')
            if report_acc:
                for account_id, val in comparison_res[report_id].get('account').items():
                    report_acc[account_id]['comp_bal'] = val['balance']

    for report in child_reports:
        vals = {
            'name': report.name,
            'balance': res[report.id]['balance'] * report.sign,
            'type': 'report',
            'level': bool(report.style_overwrite) and report.style_overwrite or report.level,
            'account_type': report.type or False, #used to underline the financial report balances
        }
        if data['debit_credit']:
            vals['debit'] = res[report.id]['debit']
            vals['credit'] = res[report.id]['credit']

        if data['enable_filter']:
            vals['balance_cmp'] = res[report.id]['comp_bal'] * report.sign

        lines.append(vals)
        if report.display_detail == 'no_detail':
            #the rest of the loop is used to display the details of the financial report, so it's not needed here.
            continue

        if res[report.id].get('account'):
            sub_lines = []
            for account_id, value in res[report.id]['account'].items():
                #if there are accounts to display, we add them to the lines with a level equals to their level in
                #the COA + 1 (to avoid having them with a too low level that would conflicts with the level of data
                #financial reports for Assets, liabilities...)
                flag = False
                account = self.env['account.account'].browse(account_id)
                vals = {
                    'name': account.code + ' ' + account.name,
                    'group_id': account.code + ' ' + account.'aca necesito concatenar el group_id',
                    'balance': value['balance'] * report.sign or 0.0,
                    'type': 'account',
                    'level': report.display_detail == 'detail_with_hierarchy' and 4,
                    'account_type': account.internal_type,
                }
                if data['debit_credit']:
                    vals['debit'] = value['debit']
                    vals['credit'] = value['credit']
                    if not account.company_id.currency_id.is_zero(vals['debit']) or not account.company_id.currency_id.is_zero(vals['credit']):
                        flag = True
                if not account.company_id.currency_id.is_zero(vals['balance']):
                    flag = True
                if data['enable_filter']:
                    vals['balance_cmp'] = value['comp_bal'] * report.sign
                    if not account.company_id.currency_id.is_zero(vals['balance_cmp']):
                        flag = True
                if flag:
                    sub_lines.append(vals)
            lines += sorted(sub_lines, key=lambda sub_line: sub_line['name'])
    return lines