How to make a multilevel button in a telegram bot in Python?

Question

Python

def start(m):
keyboard = types.ReplyKeyboardMarkup(resize_keyboard=True)
keyboard.add(*[types.KeyboardButton(name) for name in ['Stocks', 'News', 'Order']])
keyboard.add( *[types.KeyboardButton(name) for name in ['Location']])
how to make it so that when you click on "Promotions", you get to the menu of several more buttons?