I did some research about report parser but I don't know why my module is not working.

The method get_rec is not callable:

report_parser.py
from openerp import models
from openerp.report import report_sxw
import time

class report_parser(report_sxw.rml_parse):
     
    def __init__(self, cr, uid, name, context):
        super(report_parser, self).__init__(cr, uid, name, context=context)
        ids = context.get('active_ids')
        account_voucher = self.env['account.voucher']
        
        amount = {}
        
        for partner in account_voucher.browse(ids):
            amount[partner.id] = self._get_rec(partner)
        
        self.localcontext.update({     
            'time': time,            
            'get_rec': self._get_rec,
            
        })
        self.context = context
    
    def _get_rec(self, partner):
        account_voucher = self.env[''account.voucher.pay.detail'']
        account = account_voucher.search(self.cr, self.uid,
                [('partner_id', '=', partner.id)])
        movelines = account_voucher.browse(self.cr, self.uid, account)
        return movelines
 
class pdc_report_parser_test(models.AbstractModel):
    _name = 'report.my_module.report_test'
    _inherit = 'report.abstract_report'
    _template = 'my_module.report_test'
    _wrapped_report_class = report_parser

report_test.xml

<?xml version="1.0" encoding="utf-8"?>
<!--Custom report.-->
<openerp>
<data>
<template id="report_test">
    <t t-call="my_module.mylayout">
        <div class="page">
            <table class="table table-condensed">
                <thead>
                    <tr>
                        <th>Transaction Date</th>
                           ... ....
                     </tr>
                </thead>
                <tr t-foreach="get_rec(o)" t-as="line">
                    <td>
                        <span t-field="line.name"/>
                    </td>
                     ........
</data>
</openerp>