how to put permission on excel report button

[samaremad]

hi everyone please help me

i made excel report button on the grid and i want to specify a permission for that button so that only the admin can see the reports
please help me with that

note : i allready make class of permission i just need to give access to that button

[luongnv6]

This is code in grid.ts

protected getButtons() {
            var buttons = super.getButtons();

            if (Q.Authorization.hasPermission("permissionName"))
                buttons.push({
                    title: 'Print Report',
                    cssClass: 'export-pdf-button',
                    onClick: () => {
                        Common.ReportHelper.execute({
                            reportKey: "PowerInventory.Report",
                            params: {
                                Request: this.view.params as Serenity.ListRequest
                            }
                        });
                    }
                });



            return buttons;
        }