import { NodeCompatibleFileSystemAdapter, type NodeFileSystemCapabilityOptions } from "../shared/node-filesystem-adapter.js";
import type { BunNamespace } from "./types.js";
export type BunFileSystemRuntime = Pick<BunNamespace, "file" | "write">;
/**
 * Bun-native fast paths for file contents. Directory, metadata, mutation, and
 * watcher operations intentionally reuse Bun's documented Node-compatible
 * filesystem APIs through the shared Node-compatible implementation.
 */
export declare class BunFileSystemAdapter extends NodeCompatibleFileSystemAdapter {
    private readonly runtime;
    constructor(runtime?: BunFileSystemRuntime | null, options?: NodeFileSystemCapabilityOptions);
    readFile(path: string): Promise<string>;
    readFileBytes(path: string): Promise<Uint8Array>;
    writeFile(path: string, content: string): Promise<void>;
    writeFileBytes(path: string, content: Uint8Array): Promise<void>;
    private requireRuntime;
}
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