export interface SerializedSortedHash<TItem> {
    sequence: string[];
    hash: {
        [key: string]: TItem;
    };
}
export declare class SortedHash<TItem> {
    private sequence;
    private hash;
    constructor(defaultValue?: SerializedSortedHash<TItem>);
    add(key: string, item: TItem): void;
    get(key: string): TItem | void;
    keys(): string[];
    contains(key: string): boolean;
    getList(): TItem[];
    map<TValue>(callback: (item: TItem, index: number) => TValue): TValue[];
    forEach(callback: (item: TItem, index: number) => void): void;
    insertAtIndex(key: string, item: TItem, index: number): void;
    remove(key: string): void;
    serialize(): {
        sequence: string[];
        hash: {
            [x: string]: TItem;
        };
    };
}