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import type { IFileSystemSyncAccessHandle, FileSystemReadWriteOptions, CoreFsaContext } from './types';
import type { Superblock } from '@jsonjoy.com/fs-core';
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle
*/
export declare class CoreFileSystemSyncAccessHandle implements IFileSystemSyncAccessHandle {
private readonly _core;
private readonly _path;
private readonly _ctx;
private _fd;
private _closed;
constructor(_core: Superblock, _path: string, _ctx: CoreFsaContext);
private _ensureOpen;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/close
*/
close(): Promise<void>;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/flush
*/
flush(): Promise<void>;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/getSize
*/
getSize(): Promise<number>;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/read
*/
read(buffer: ArrayBuffer | ArrayBufferView, options?: FileSystemReadWriteOptions): Promise<number>;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/truncate
*/
truncate(newSize: number): Promise<void>;
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemSyncAccessHandle/write
*/
write(buffer: ArrayBuffer | ArrayBufferView | DataView, options?: FileSystemReadWriteOptions): Promise<number>;
}