gistfile1.txt

def wiz_launch(self, cr, uid):
    view_id = self.pool.get('ir.model.data').get_object_reference(cr, uid, 'hr_shift_wizard', 'act_window_wiz_shift_view')

    return {
        'name':"Display Name",
        'view_mode': 'form',
        'views': view_id,
        'view_type': 'form',
        'view_mode': 'form',
        'res_model': 'hr.shift.wizard',
        'type': 'ir.actions.act_window',
        'target': 'new',
        'context': {}
    }
    
    
    
and in js:

callPrint: function(e){
    var self = this;

    var ds = new instance.web.DataSet(this, 'wiz.shift', this.dataset.context);
    ds.call('wiz_launch', []).done(function(r) {
        console.log(r);
    });

},