import { Readable } from 'stream';
export declare class FileLoader extends Readable {
    private filePath;
    private chunkSize;
    private fileHandle;
    private position;
    private fileSize;
    constructor(filePath: string, chunkSize?: number);
    _construct(callback: (error?: Error | null) => void): Promise<void>;
    _read(_: number): Promise<void>;
    _destroy(error: Error | null, callback: (error: Error | null) => void): Promise<void>;
}