taobao.logistics.companies.get 查询物流公司信息
        
        查询淘宝网合作的物流公司信息，用于发货接口。

def get(self, session, is_recommended=None, order_mode=None, fields=[]):
        '''taobao.logistics.companies.get 查询物流公司信息
        
        查询淘宝网合作的物流公司信息，用于发货接口。'''
        request = TOPRequest('taobao.logistics.companies.get')
        if not fields:
            lc = LogisticsCompany()
            fields = lc.fields
        request['fields'] = fields
        if is_recommended!=None: request['is_recommended'] = is_recommended
        if order_mode!=None: request['order_mode'] = order_mode
        self.create(self.execute(request, session))
        return self.logistics_companies