Help to troubleshoot error "missing 1 required positional argument: 'context'"

[Ayanaminn]

Trying to build my first bot and got stuck here. My code:

from telegram import Update
from telegram.ext import filters, ApplicationBuilder, ContextTypes, CommandHandler, MessageHandler
import text_module


class Bot():

    def __init__(self, config):

       # some config value, irrelevant

    #update some text every 5 sec
    async def start_update(self,update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
        context.job_queue.run_repeating(self.update_text, interval=5)


    async def update_text(self,update: Update,context: ContextTypes.DEFAULT_TYPE):     
        #get new text
        new_text = text_module.update_text()
        await self.process_text(context,new_text)


    async def process_text(self, context: ContextTypes.DEFAULT_TYPE,my_text):
        # do some text processing here
       final_text =  text_module.process_text()
       await context.bot.send_message(chat_id='my_id',text=final_text)


    def run(self):
        application = ApplicationBuilder().token('TOKEN')').build()
        application.add_handler(CommandHandler('update', self.start_update))

        application.run_polling()

if __name__ == '__main__':
    tg_bot = Bot(config=config)
    tg_bot.run()

When I run this script, I got

Traceback (most recent call last):
  File "C:\Users\BioMEMS\AppData\Local\Programs\Python\Python310\lib\site-packages\telegram\ext\_jobqueue.py", line 777, in _run
    await self.callback(context)
TypeError: Bot.update_text() missing 1 required positional argument: 'context'

What does this error mean? I think I still do not fully understand the Callbackcontext in PTB....Could anyone help me out here? Thank you.

[Bibo-Joshi]

https://github.com/python-telegram-bot/python-telegram-bot/wiki/Frequently-Asked-Questions#why-am-i-getting-an-error-the-following-arguments-have-not-been-supplied

[Ayanaminn]

Thank you! I should only pass CallbackContext, and not pass Update.