Zabbix api item.get json 2

{
        "jsonrpc":"2.0",
        "method":"item.get",
        "params":{
                "output":"extend",
                "sortfield":"itemid",
                "search":{
                         "key_": "system.cpu.load[percpu,avg5]"
                        },
                "hostids":[
                        "10085","10086"
                ]
        },
        "id":2,
        "auth":"AUTH_ID"
}