import { type FileHandle } from 'node:fs/promises';
export type StreamWithHandle = ReadableStream<Uint8Array> & {
    fileHandle: FileHandle;
};
export interface FileHandleLike {
    write(buffer: Uint8Array, offset: number, length: number, position: number): Promise<{
        bytesWritten: number;
    }>;
    truncate(len?: number): Promise<void>;
    close(): Promise<void>;
}
export declare function fromFile(input: string | FileHandle): Promise<StreamWithHandle>;
/**
 * Convert a Node file handle into a writable web stream.
 */
export declare function toFile(input: string | FileHandleLike): Promise<WritableStream<Uint8Array>>;
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