Hi,

I am a beginner in python programming,

please help me, 

how to make the button state invisible after clicking, and this is my current code :

<header>
<button name="action_close" type="object" string="Sesi Berakhir" state_id="in" class="btn-primary" />
<field name="state_id" widget="statusbar" statusbar_visible="in,out"/>
</header>
@api.multi
    def action_close(self):
        
        self.write({'state_id': 'out'})
        self.write({'end_time':fields.Datetime.now(self)})
        return self
this image : https://drive.google.com/file/d/1UIkZE6BcWr04lbNMYdtwT-IOSvkoBkfQ/view?usp=sharing

so when the status is "Sesi Berakhir"
the "Sesi Berakhir" button is gone

Thanks before :D