export declare const workerData: {
    langs: string;
    initOpts: {
        cachePath: any;
        gzip: boolean;
    };
    params: {
        tessjs_create_hocr: string;
        tessjs_create_tsv: string;
        tessjs_create_box: string;
        tessjs_create_unlv: string;
        tessjs_create_osd: string;
    };
};
export declare const checkSource: (source?: string) => boolean;