type TfLiteErrorHandler = (err: any) => any; type TfLiteSuccessHandler = (data: any) => any; interface TfLiteOptions { base64Img?: string; } interface TfLite { takePicture(options?:TfLiteOptions|TfLiteSuccessHandler, onSuccess?:TfLiteSuccessHandler|TfLiteErrorHandler, onError?:TfLiteErrorHandler):void; }