user_id = update.effective_chat.id # Replace with the user ID you want to search for
channel_username = "@oqolmoqol" # Replace with your channel username or ID
# try:
member = await context.bot.get_chat_member(channel_username, user_id) دوستان این از کتابخونه python-telegram-bot هستش ولی ارور badRequest میده نمیدونم چرا