how to set tool tip for daypilot-calender

The event tooltip is enabled by default (ShowToolTip property is set to true). The default tooltip uses the event text (loaded from the field specified using DataTextField).

You can also customize it using BeforeEventRender event handler (just set e.ToolTip as needed).

See also:
https://doc.daypilot.org/calendar/event-customization/

Inside the

$scope.weekConfig = {
visible: true,
viewType: "Week",
businessBeginsHour: 9,
businessEndsHour: 17,
ShowToolTip :true,
eventMoveHandling: "Disabled",
}

i have initialized but it is not showing

and also i initialized inside
$scope.weekConfig

onBeforeEventRender: function(args) {
if (args.data.tags && args.data.tags.type === "important"){
args.data.rightClickDisabled = true;
args.data.barColor = "red";
args.ToolTip="asdf";
}
},

this also not working