/** Binary reader/writer for the OpenTimestamps proof format. Node builtins only. */
export declare class OtsError extends Error {
    constructor(message: string);
}
export declare class Reader {
    private readonly buf;
    private offset;
    constructor(buf: Buffer, offset?: number);
    remaining(): number;
    eof(): boolean;
    readByte(): number;
    read(n: number): Buffer;
    readVaruint(): number;
    readVarbytes(max?: number): Buffer;
    assertMagic(magic: Buffer): void;
    assertEof(): void;
}
export declare class Writer {
    private chunks;
    writeByte(b: number): void;
    write(buf: Buffer | number[]): void;
    writeVaruint(value: number): void;
    writeVarbytes(buf: Buffer): void;
    toBuffer(): Buffer;
}
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