export declare class ExtendMap<T, V> {
    private map;
    constructor(extendMap?: ExtendMap<T, V>);
    get keys(): T[];
    set(t: T, v: V): void;
    get(t: T): V;
    findKeysByValue(searchValue: any, arrayField?: string): T[];
    removeValueFromMap(key: T, searchValue: any, arrayField: any): void;
}