import type { FolderName, OpfsKey } from './types.js';
export interface EvictionIndexEntry {
    key: OpfsKey;
    size: number;
    lastAccessed: number;
}
export declare function ensureCachesPopulated(dir: FileSystemDirectoryHandle): Promise<void>;
export declare function registerFileInCache(_dir: FileSystemDirectoryHandle, _folderName: FolderName, key: OpfsKey, size: number, evictable: boolean, lastAccessed: number): Promise<void>;
export declare function invalidateCacheForDir(folderName: FolderName): void;
export interface GetEntriesForEvictionResult {
    entries: EvictionIndexEntry[];
    totalSize: number;
}
export declare function getEntriesForEviction(dir: FileSystemDirectoryHandle, _folderName: FolderName): Promise<GetEntriesForEvictionResult>;
export declare function updateEvictionIndexLastAccessed(dir: FileSystemDirectoryHandle, _folderName: FolderName, key: OpfsKey, lastAccessed: number): Promise<void>;
export declare function addToEvictionIndex(_dir: FileSystemDirectoryHandle, _folderName: FolderName, key: OpfsKey, size: number, lastAccessed: number): Promise<void>;
export declare function removeFromEvictionIndex(_dir: FileSystemDirectoryHandle, keys: OpfsKey[], _folderNames: FolderName[]): Promise<void>;