import { Writer } from "../writer.js";
import { ReadStatError } from "../errors.js";
export declare class ZsavCtx {
    buffer: Uint8Array;
    private chunks;
    private totalLen;
    zheaderOfs: number;
    uncompressedBlockSize: number;
    constructor(maxRowLen: number, offset: number);
    append(bytes: Uint8Array): void;
    concat(): Uint8Array;
}
export declare function zsavWriteCompressedRow(writer: Writer, row: Uint8Array): ReadStatError;
export declare function zsavEndData(writer: Writer): ReadStatError;