import { AcceptedFiles, FormatType, OperationOptionsCombine, ProcessType, ToFile } from '@modfy/interfaces';
import OperationClass from './OperationClass';
declare class Combine extends OperationClass<OperationOptionsCombine> {
    to: ToFile;
    currentFormat: FormatType | undefined;
    concatFile: string;
    constructor({ inputFiles, to }: {
        inputFiles: AcceptedFiles;
        to: ToFile;
    });
    getCurrentFormat: () => Promise<FormatType>;
    unpackCurrentFormat: () => {
        extension: string;
        ffmpegLib: string;
    };
    setup(processType: ProcessType): Promise<void>;
    setFFmpegArguments: () => void;
    setServerOperation: () => void;
    writeText: () => Promise<string>;
    writeTextNode: (dst: string, text: string) => Promise<void>;
    writeTextBrowser: (dst: string, text: string) => Promise<void>;
}
export default Combine;