/**
 * Browser-compatible CAR Blockstore
 * Writes blocks to an in-memory CAR structure instead of a file
 */
import type { CID } from 'multiformats/cid';
import { CARBlockstoreBase, type CARBlockstoreStats } from './car-blockstore-base.js';
export type { CARBlockstoreStats };
export interface CARBlockstoreOptions {
    rootCID: CID;
}
/**
 * A blockstore that writes blocks to an in-memory CAR structure
 * This eliminates the need for redundant storage during IPFS operations in the browser
 *
 * @example
 * ```ts
 * import { CARWritingBlockstore } from './browser-car-blockstore.js'
 * import { CID } from 'multiformats/cid'
 *
 * // Create with a placeholder or actual root CID
 * const blockstore = new CARWritingBlockstore({
 *   rootCID: someCID,
 * })
 *
 * await blockstore.initialize()
 *
 * // Add blocks (same as Node.js version)
 * await blockstore.put(cid, blockData)
 *
 * // Finalize when done
 * await blockstore.finalize()
 *
 * // Get the complete CAR file
 * const carBytes = blockstore.getCarBytes() // Uint8Array ready for upload
 * ```
 */
export declare class CARWritingBlockstore extends CARBlockstoreBase {
    private readonly memoryBackend;
    constructor(options: CARBlockstoreOptions);
    /**
     * Get the complete CAR file as Uint8Array
     * Can only be called after finalize()
     */
    getCarBytes(): Uint8Array;
}
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