/// <reference types="node" />
import * as stream from "stream";
import { CommandReader } from "./internal-readers/CommandReader.js";
import { SavMeta } from "./SavMeta.js";
/**
 * Reads schema and records from .sav file
 */
export declare class SavReader {
    reader: CommandReader;
    meta: SavMeta;
    rowIndex: number;
    constructor(readable: stream.Readable);
    /**
     * Opens the file and loads all metadata (var names, labels, valuelabels, etc). Doesn't load any records.
     */
    open(): Promise<void>;
    resetRows(): Promise<void>;
    readAllRows(includeNulls?: boolean): Promise<any[]>;
    /** Read the next row of data */
    readNextRow(includeNulls?: boolean): Promise<any>;
}