/**
 * Copyright 2022-2025, Optimizely
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Maybe } from "../type";
import { SyncCacheWithRemove } from "./cache";
import { Platform } from '../../platform_support';
export declare class InMemoryLruCache<V> implements SyncCacheWithRemove<V> {
    operation: "sync";
    private data;
    private maxSize;
    private ttl?;
    constructor(maxSize: number, ttl?: number);
    lookup(key: string): Maybe<V>;
    save(key: string, value: V): void;
    remove(key: string): void;
    reset(): void;
    getKeys(): string[];
}
export declare const __platforms: Platform[];