如何在.kv文件中将.py文件中的按钮动态添加到屏幕管理器的单个屏幕中

ScreenManager:
    id: screen_manager
    Screen:
        name: "screen1"
    Screen:
        name: "screen2"

from kivy.uix.screenmanager import Screen
from kivy.uix.button import Button

class MyScreen(Screen):
    pass

def add_button_to_screen(screen_name, button_text):
    screen = MyScreen(name=screen_name)
    button = Button(text=button_text)
    screen.add_widget(button)
    screen_manager.add_widget(screen)

add_button_to_screen("screen1", "Button 1")
add_button_to_screen("screen2", "Button 2")