from vk_api.keyboard import VkKeyboard, VkKeyboardColor 
def keyboard(): 
    keyboard = VkKeyboard(one_time = False) 

    keyboard.add_button("Белый цвет", color = VkKeyboardColor.DEFAULT) 
    keyboard.add_button("Зеленый цвет", color = VkKeyboardColor.POSITIVE) 

    keyboard.add_line() 
    keyboard.add_button("Красныйй цвет", color = VkKeyboardColor.NEGATIVE) 

    keyboard.add_line() 
    keyboard.add_button("Синий цвет", color = VkKeyboardColor.PRIMARY) 

    return keyboard.get_keyboard()