export interface IDictionary<K extends number | string, V> {
    add(key: K, value: V): boolean;
    upsert(key: K, value: V): void;
    clear(): void;
    containsKey(key: K): boolean;
    containsValue(value: V): boolean;
    count(): number;
    getKeys(): K[];
    getValues(): V[];
    getValue(key: K): V | boolean;
    update(key: K, value: V): boolean;
    remove(key: K): boolean;
}
export default class HashMap<V> implements IDictionary<string, V> {
    private data;
    add(key: string, value: V): boolean;
    upsert(key: string, value: V): void;
    clear(): void;
    containsKey(key: string): boolean;
    containsValue(value: V): boolean;
    count(): number;
    getValue(key: string): V | boolean;
    getKeys(): string[];
    getValues(): V[];
    remove(key: string): boolean;
    update(key: string, value: V): boolean;
    /**
     * Returns the internal object.
     * The current implementation returns data: { the actual key value pairs} as hashmap.
     * Wherever there is a need to pass only the key value pairs without data being appended along with it, return this.data.
     */
    getInternalObject(): {
        [key: string]: V;
    };
}