/** A dictionary class that maps string to ValueType */
export declare class Dictionary<ValueType> {
    private _dict;
    constructor();
    /** Set an entry */
    set(key: string, value: ValueType): void;
    /** Determine if the dictionary has an entry */
    has(key: string): boolean;
    /** Delete an entry from the dictionary */
    delete(key: string): void;
    /** Get a entry, if not found, return undefined */
    get(key: string): ValueType;
    /** Iterate over the dictionary */
    forEach(cb: (value: ValueType, key: string) => any): void;
    /** Create a copy of the dictionary */
    clone(): Dictionary<ValueType>;
}
/** Shallow clone an object */
export declare function shallowClone<T>(object: T): T;
/** Attempt different names starting with prefix until check returns true */
export declare function attemptName(prefix: string, check: (candidate: string) => boolean): string;