Represents a triggered keyboard [Shortcut].
InputEventShortcut is a special event that can be received in [method Node._unhandled_key_input]. It is typically sent by the editor's Command Palette to trigger actions, but can also be sent manually using [method Viewport.push_input].
- The [Shortcut] represented by this event. Its [method Shortcut.matches_event] method will always return [code]true[/code] for this event.