problem with page route..!

[Diae98]

this error :TypeError: Control._build_add_commands() missing 1 required positional argument: 'self', when I run this code, idk
where are you, father

`import flet
from flet import *

class Wellcome_page(UserControl):
def init(self):
super().init()

def go_to_home(self):
    self.page.go('/Home')

def build(self):
    sec = Container(
            Stack([
                Image(src="trying expert\purple.jpg"),
                Container(
                    Container(
                        Column([
                            Text(
                                "Wellcome",
                                italic=True,
                                size=32,
                                color=colors.WHITE,   
                            ),
                            Text(
                                "Take breath and see out box",
                                italic=True,
                                size=26,
                                color=colors.WHITE 
                            ),
                            ElevatedButton(
                                text="Start!",
                                tooltip="Start use app!",
                                width=120,
                                height=70,
                                color = colors.WHITE,
                                bgcolor=colors.PURPLE_700,
                                opacity=0.8,
                                on_click=lambda e: self.go_to_home(),
                            )

                            ],
                            alignment=MainAxisAlignment.CENTER,
                            horizontal_alignment= CrossAxisAlignment.CENTER    
                        ),
                        width=350,
                    height=200,
                    margin=margin.only(top=150),
                    border_radius=10,
                    blur=Blur(10,12,BlendMode.DARKEN),
                    border=border.all(2,color=colors.PURPLE_800),
                    opacity=0.9
                    ),
                    alignment=alignment.center
                )
                ] 
                )
        )
    return sec

class Home(UserControl):
def init(self):
super().init()
def build(self):
return Text("Yes",size=100)

def main(page:Page):
page.vertical_alignment = MainAxisAlignment.CENTER
page.horizontal_alignment = CrossAxisAlignment.CENTER

wellcome_page = Wellcome_page()
home = Home
def route_change(route):
    page.views.clear()
    if page.route == '/':
        page.views.append(wellcome_page)
    if page.route == '/Home':
        page.views.append(home)

page.on_route_change = route_change
page.go(page.route)

flet.app(target=main)`

[FeodorFitsner]

Please provide complete, runnable code example.