Represents a file that failed to upload, either due to client-side validation, server-side validation, or other network failures.
Error object for the failed upload.
For client-side validation errors, this will be an instance of UploadWidgetValidationError from the @bytescale/upload-widget module.
For Bytescale API errors, which includes errors resulting from server-side validation rules (which you can configure in the Bytescale Dashboard under the Rules page), this will be an instance of BytescaleApiError from the @bytescale/sdk module.
File object from the DOM (i.e. from the input's onchange event).