[Python] Error in using fetch_balance in Lib ccxt in python

Good Day

i try to connect to coinex exchange with below code:

import asyncio

import os
from random import randint
import sys
from pprint import pprint

root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(root + '/python')

import ccxt.async_support as ccxt # noqa: E402



print('CCXT Version:', ccxt.__version__)

exchange = ccxt.coinex({
'apiKey': '<REDACTED>',
'secret': '<REDACTED>',
})
if sys.platform == 'win32':
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())


# Example 1 :: Swap : fetch balance, create a limit swap order with leverage
async def example_1():
exchange.options['defaultType'] = 'swap'
exchange.options['defaultMarginMode'] = 'cross' # or isolated


markets = await exchange.load_markets()

# fetch swap balance

balance = await exchange.fetch_balance()
print(balance)

# set the desired leverage (has to be made before placing the order and for a specific symbol)
leverage = 8
symbol = 'ADA/USDT:USDT'
leverage_response = await exchange.set_leverage(leverage, symbol)

# create limit order
symbol = 'ADA/USDT:USDT'
type = 'limit'
side = 'buy'
amount = 50
price = 0.3
create_order = await exchange.create_order(symbol, type, side, amount, price)
print('Create order id:', create_order['id'])



async def main():
await example_1()


asyncio.run(main())



when i run that code, i get a below error in fetch_balance() function :

coinex Tonce check error, correct tonce should be within one minute of the current time

i search in all of network but i can not find any solotion about that

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