export declare type Action<T> = Insert<T> | Update<T> | Delete<T>;
export declare type Insert<T> = {
    type: 'insert';
    value: T;
};
export declare type Update<T> = {
    type: 'update';
    value: T;
};
export declare type Delete<T> = {
    type: 'delete';
    value: T;
};
declare type CacheOptions<T> = {
    key: keyof T;
    timestamp: keyof T;
};
export declare class Cache<T> {
    private readonly options;
    private readonly data;
    constructor(options: CacheOptions<T>);
    private keyOf;
    private timestampOf;
    private inserts;
    private updates;
    private deletes;
    update(values: T[]): Action<T>[];
}
export {};