title Type – CanvasEvent

type CanvasEvent<T = any> = {
  type: string,
  target: T,
  preventDefault: () => void,
  stopPropagation: () => void,
  defaultPrevented: boolean,
  propagationStopped: boolean,
  detail: number,
  which: number,
}

Source

packages / workbench / src / interact / event.ts