/**
 * Write Stream - Memory-Efficient File Writing
 *
 * Provides streaming file write operations for large files with:
 * - Chunk-based writing
 * - Progress tracking
 * - Cancellation support
 * - Append mode support
 */
import { StreamOptions, StreamResult } from './read-stream.js';
export declare class WriteStream {
    /**
     * Write chunks progressively to file
     */
    writeChunks(filePath: string, chunks: AsyncIterable<Buffer>, options?: StreamOptions): Promise<StreamResult>;
    /**
     * Append chunks to existing file
     */
    appendChunks(filePath: string, chunks: AsyncIterable<Buffer>, options?: StreamOptions): Promise<StreamResult>;
    /**
     * Write buffer in chunks with progress
     */
    writeBuffer(filePath: string, buffer: Buffer, options?: StreamOptions): Promise<StreamResult>;
    /**
     * Copy file using streams (memory efficient)
     */
    copyFile(sourcePath: string, destPath: string, options?: StreamOptions): Promise<StreamResult>;
}
export declare const writeStream: WriteStream;
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