The BeforeInstallPromptEvent is fired at the `Window.onbeforeinstallprompt`
before a user is prompted to \"install\" a web site to a home
on mobile.

The DOM CompositionEvent represents events that occur due to
user indirectly entering text.

web.event interfaces.

The FocusEvent interface represents focus-related events, including
blur, focusin, and focusout.

The GestureEvent is a proprietary interface specific to WebKit
gives information regarding multi-touch gestures. Events using
interface include gesturestart, gesturechange, and gestureend.

The HashChangeEvent interface represents events that fire when
fragment identifier of the URL has changed.

The InputEvent interface represents an event notifying of editable
change.

The MouseEvent interface represents events that occur due to
user interacting with a pointing device (such as a mouse). Common
using this interface include click, dblclick, mouseup, mousedown.

MSManipulationEvent provides contextual information when contact
made to the screen and an element is manipulated.

The PageTransitionEvent is fired when a document is being loaded
unloaded.

The PointerEvent interface represents the state of a DOM event
by a pointer such as the geometry of the contact point, the device
that generated the event, the amount of pressure that was applied
the contact surface, etc.

The ProgressEvent interface represents events measuring progress
an underlying process, like an HTTP request (for an XMLHttpRequest,
the loading of the underlying resource of an `<img>`, `<audio>`,
`<style>` or `<link>`).

The TouchEvent interface represents an `web.event.UIEvent` which
sent when the state of contacts with a touch-sensitive surface
This surface can be a touch screen or trackpad, for example.
event can describe one or more points of contact with the screen
includes support for detecting movement, addition and removal
contact points, and so forth.

The UIEvent interface represents simple user interface events.

The UserProximityEvent indicates whether a nearby physical object
present by using the proximity sensor of a device.

The WheelEvent interface represents events that occur due to
user moving a mouse wheel or similar input device.

XMLHttpRequestEventTarget is the interface that describes the
handlers you can implement in an object that will handle events
an `web.XMLHttpRequest`.