I am writing a telegram to the bot. I ran into such a problem. I need the bot to send a message (text) when clicked on which it was copied (as a token from @BotFather)
If I understand you correctly, you wish to send a message, that if the user pressed, the text is automaticlly copied to the user's clipboard, just like the botfather sends the API token?
This is done by the MarkDown parse_mode
; Send a message with &parse_mode=MarkDown
and wrap the 'pressable' text in backticks: ' ` '
Hi. `Press me!`!
https://api.telegram.org/bot<token>/sendMessage?chat_id=<id>&text=Hi! `Press me!`&parse_mode=MarkDown
EDIT: Bases on your comment you're looking for a python-telegram-bot solution. From there documentation;
bot.send_message(chat_id=chat_id,
text="*bold* _italic_ `fixed width font` [link](http://google.com).",
parse_mode=telegram.ParseMode.MARKDOWN)