code: func NewImagemapMessage(baseURL, altText string, baseSize ImagemapBaseSize, actions ...ImagemapAction) *ImagemapMessage {
  	return &ImagemapMessage{
  		BaseURL:  baseURL,
  		AltText:  altText,
  		BaseSize: baseSize,
  		Actions:  actions,
  	}
  }
docs: // NewImagemapMessage function