code: func (e *Event) Payload() (payload interface{}) {
  	var err error
  	payload, err = e.ParsePayload()
  	if err != nil {
  		panic(err)
  	}
  	return payload
  }
docs: // Payload returns the parsed event payload. For recognized event types,
  // a value of the corresponding struct type will be returned.
  //
  // Deprecated: Use ParsePayload instead, which returns an error
  // rather than panics if JSON unmarshaling raw payload fails.