uploadHandler is not defined

[NekoKetsu]

webapp/WEB-INF/templates/skin/plugins/asynchronousupload/upload_commons.html
uploadHandler is not defined

<input 
type="checkbox"
id="${handler.uploadCheckboxPrefix}${fieldName}${file_index}" 
name="${handler.uploadCheckboxPrefix}${fieldName}${file_index}" 
value="${uploadHandler.uploadCheckboxPrefix}${fieldName}${file_index}" 
/>

https://github.com/lutece-platform/lutece-tech-plugin-asynchronousupload/blob/ea60fb50a09d00aaaa90b5242fe9cf744ca1c335/webapp/WEB-INF/templates/skin/plugins/asynchronousupload/upload_commons.html#L93C5-L93C5