export interface IConstructorOf<T> {
    new (...args: any[]): T;
}
export interface IMapOf<T> {
    [key: string]: T;
}
export type Nullable<T> = {
    [K in keyof T]?: T[K] | null;
};
export declare function getValue<T, K extends keyof T>(obj: T, key: K): T[K];
export interface IDictionary<T> {
    [index: string]: T;
}
export interface INumericDictionary<T> {
    [index: number]: T;
}