docs: async def post_init(self):
          """
          Completes the initialization of our application.
          Since `__init__` cannot be `async` we use this.
          """
          if await self.cl.is_user_authorized():
              self.set_signed_in(await self.cl.get_me())
          else:
              # User is not logged in, configure the button to ask them to login
              self.sign_in_button.configure(text='Sign in')
              self.sign_in_label.configure(
                  text='Sign in (phone/token):')