I am trying to implement a chatbot with various languages. The language depends on the chatbot token that is being used (there are multiple).
I would like to set up a "lang" parameter in every context/update, in every handler. I didn't find a meaningful way to do this using persistence.

def start(update, context):
    update.message.reply_text( strings_dict[context["lang"]]["string_nr_1"], 
            reply_markup=markup)