def go_back(update: Update, context: CallbackContext):  # repeat last function
    if 'last_function' in context.user_data:
        update.message.text = ''  # Not None because "lower" and "strip" will be applied
        return context.user_data['last_function'](update, context)
    else:
        update.message.reply_text(text='Can't go back at this step')

def go_next(update: Update, context: CallbackContext):  # repeat last function
    update.message.text = ''  # Not None because "lower" and "strip" will be applied


@bot_logger()
def user_gender_handler(update: Update, context: CallbackContext):
    # # # PROCESS OLD MESSAGE # # #
    # Just ask age if "back" or "next " was sent
    if message_text := update.message.text.lower().strip():
        if message_text == 'male':
            context.user_data['user'].gender = 1  # Male
        elif message_text == 'female':
            context.user_data['user'].gender = 2  # Female
        else:
            update.message.reply_text(f'I dont understand you. Type "male" or "female"')
            return 3
    # # # SEND NEW MESSAGE # # #
    update.message.reply_text(text=f'Step 4 of 7.\nWhat is your age.',
                              reply_markup=keyboards.keyboard_for_user_age)
    context.user_data['last_function'] = user_goal_handler
    return 4


partner = ConversationHandler(
    entry_points=[
        MessageHandler(filters=Filters.regex(config.start_search_r), callback=handlers.start_search)],

    prefallbacks=[
        MessageHandler(filters=Filters.regex(config.back_r), callback=handlers.go_back),
        MessageHandler(filters=Filters.regex(config.skip_r), callback=handlers.go_next),
        MessageHandler(filters=Filters.regex(config.cancel_r), callback=end_conversation),
    ],

    states={
        0: [MessageHandler(filters=Filters.text, callback=handlers.start_search_handler)],
        1: [MessageHandler(filters=Filters.text, callback=handlers.target_goal_handler)],
        2: [MessageHandler(filters=Filters.text, callback=handlers.target_gender_handler)],
        3: [MessageHandler(filters=Filters.text, callback=handlers.target_age_handler)],
        ConversationHandler.TIMEOUT: [TypeHandler(type=Update, callback=end_conversation)]  # 1
    },
    fallbacks=[],
)