MouseEvent

fun MouseEvent(type: String, detail: Long, altKey: Boolean, button: Int, buttons: Int, clientX: Int, clientY: Int, ctrlKey: Boolean, metaKey: Boolean, movementX: Int? = null, movementY: Int? = null, region: String? = null, screenX: Int, screenY: Int, shiftKey: Boolean, x: Int = clientX, y: Int = clientY, retrieved: JsonElement = JsonNull)