type Block = {
    header: any;
    input: Uint8Array;
    headerLength: number;
    inputLength: number;
};
declare class Tar {
    blocks: Block[];
    written: number;
    length: number;
    out: Uint8Array;
    constructor(recordsPerBlock: number);
    append(filepath: string, input: string | Uint8Array, opts?: {
        mode?: number;
        mtime?: number;
        uid?: any;
        gid?: number;
        owner?: any;
        group?: any;
    }): void;
    save(): Blob;
    clear(): void;
}
export default Tar;
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