export default class VolumeCache {
    private entries;
    readonly maxSize: number;
    private currentSize;
    private first;
    private last;
    constructor(maxSize?: number);
    /** The size of all data arrays currently stored in this cache, in bytes. */
    get size(): number;
    /** The number of entries currently stored in this cache. */
    get numberOfEntries(): number;
    /**
     * Removes an entry from a store but NOT the LRU list.
     * Only call from a method with the word "evict" in it!
     */
    private removeEntryFromStore;
    /**
     * Removes an entry from the LRU list but NOT its store.
     * Entry must be replaced in list or removed from store, or it will never be evicted!
     */
    private removeEntryFromList;
    /** Adds an entry which is *not currently in the list* to the front of the list. */
    private addEntryAsFirst;
    /** Moves an entry which is *currently in the list* to the front of the list. */
    private moveEntryToFirst;
    /** Evicts the least recently used entry from the cache. */
    private evictLast;
    /** Evicts a specific entry from the cache. */
    private evict;
    /**
     * Adds a new entry to the cache.
     * @returns {boolean} a boolean indicating whether the insertion succeeded.
     */
    insert(key: string, data: ArrayBuffer): boolean;
    /** Internal implementation of `get`. Returns all entry metadata, not just the raw data. */
    private getEntry;
    /** Attempts to get a single entry from the cache. */
    get(key: string): ArrayBuffer | undefined;
    /** Clears all cache entries whose keys begin with the specified prefix. */
    clearWithPrefix(prefix: string): void;
    /** Clears all data from the cache. */
    clear(): void;
}