i am developing a json rpc based attendance system. so fer i got this below code working as planned except one thing, when searching for last attendance entry id i'm getting full list of ids associated with the related user, this is how search function works, but i want only the last entry id, i thing this can be achieve by using FILTER and OFFSET (maybe), which i'm unable include in my code. can anybody look at this python code and guide me. getting the full list is not an option for me, as i will use arduino later, so memory is limited. and i wanna know how to include this parameters.

import json
import random
import urllib.request
import datetime
import sys

CODE = sys.argv[1]
HOST = 'localhost'
PORT = 8069
DB = 'ezp'
USER = 'root'
PASS = 'toor'
url = "http://%s:%s/jsonrpc" % (HOST, PORT)
date_time = datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S")

def call(url, service, method, *args):
    id = random.randint(0, 1000000000)
    data = {"jsonrpc": "2.0", "params": {"args": args, "method": method,"service":service,}, "id": id, "method": "call",}
    req = urllib.request.Request(url=url, data=json.dumps(data).encode(), headers={"Content-Type":"application/json",})
    reply = json.loads(urllib.request.urlopen(req).read().decode('UTF-8'))
    if reply.get("error"):
        raise Exception(reply["error"])
    return reply

temp = call(url, "common", "login", DB, USER, PASS)
uid = temp["result"]
print('Login ID: ' + str(uid))

temp = call(url, "object", "execute", DB, uid, PASS, 'hr.employee', 'search', [['barcode', '=', CODE]])
eid = str(temp["result"])[1:-1]
if(eid == ''):
  print('Employee not exists')
  exit()

temp = call(url, "object", "execute", DB, uid, PASS, 'hr.employee', 'read', int(eid), ['name'])
for x in temp["result"]:
     e_name = x['name']
print('Employee Name: ' +str(e_name))

# below rpc list all the attendance ids associated with this user
temp = call(url, "object", "execute", DB, uid, PASS, 'hr.attendance', 'search', [['employee_id','=', int(eid)]])
# how can i insart FILTER PARAMETER so thet only the last entry id returns instead of full list??????
attn = temp["result"]
print('All attendances: ' + str(attn))

def fn_check_in():
    attn_record = {'employee_id': eid, 'check_in': date_time}
    result = call(url, "object", "execute", DB, uid, PASS, 'hr.attendance', 'create', attn_record)
    print('Checked In : ' + str(e_name), ' At: ' + date_time)

def fn_check_out(id):
    attn_record = {'check_out': date_time}
    result = call(url, "object", "execute", DB, uid, PASS, 'hr.attendance', 'write', int(id), attn_record)
    print('Checked Out : ' + str(e_name), ' At: ' + date_time)

def attendance():
    if(len(attn) == 0):
        fn_check_in()
    else:
        last_id = attn[0]
        for i in range(0, len(attn)):
            if(attn[i] > last_id):
                last_id = attn[i]
        print('Last Entry ID: ' + str(last_id))
        is_out = call(url, "object", "execute", DB, uid, PASS, 'hr.attendance', 'read', int(last_id), ['check_out'])
        if('False' in str(is_out)):
            fn_check_out(last_id)
        else:
            fn_check_in()
attendance()