https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code

import os
import sys

# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
import asyncio
import ccxt.pro as ccxt  # noqa: E402


# AUTO-TRANSPILE #
'use strict'


print('CCXT Version:', ccxt.version)  # eslint-disable-line import/no-named-as-default-member


async def loop(exchange, symbol):
   while True:
       try:
           ticker = await exchange.watch_ticker(symbol)
           print(Date(), exchange.id, symbol)
           print(ticker)
           await exchange.sleep(1000)
       except Exception as e:
           print(e)


async def main():
   exchange = ccxt.apex({
       'apiKey': 'your api Key',
       'secret': 'your api secret',
       'walletAddress': 'your eth address',
       'options': {
           'accountId': 'your account id',
           'passphrase': 'your api passphrase',
           'seeds': 'your zklink omni seed',
           'brokerId': '',
       },
   })
   exchange.set_sandbox_mode(True)
   if exchange.has['watchTicker']:
       await exchange.load_markets()
       target_symbols = ['BTC-USDT', 'ETH-USDT']
       for i in range(0, len(target_symbols)):
           symbol = target_symbols[i]
               await exchange.close()

asyncio.run(loop(exchange, symbol))
   else:
       print(exchange.id, 'does not support watchTicker yet')


main()