Does wx's masOS implementation support sending notification?

Here is an example

wx = :wx.new()
frame = :wxFrame.new(:wx.null(), -1, "Hello")
:wxFrame.show(frame)

"Notification Title"
|> :wxNotificationMessage.new()
|> :wxNotificationMessage.show()
|> dbg

Process.sleep(:infinity)

It doesn’t really send notification. Am I missing something here?