Hello, I would like to know how to open a form with an existing record in Edit mode.  The form is called when I return a dictionary from a method like this:

return {
            'name': 'Name',
            'view_type': 'form',
            'view_mode': 'form',
            'view_id': 100,
            'res_model': 'sale.order.line',
            'res_id': 1,
            'type': 'ir.actions.act_window',
            'context': context,
        }

Is there another key I can assign with some value that opens this form in Edit mode?