export interface TypeOf<T> extends Function {
    new (...args: any[]): T;
}
export declare type AnyType = TypeOf<any>;
export interface NoArgsConstructable extends Function {
    new (...args: any[]): any;
}
export interface StringIndexable {
    [key: string]: any;
}
export interface ToStringable {
    toString(): string;
}
export interface DtoLike {
    [key: string]: string | string[] | number | number[] | DtoLike | DtoLike[];
}
/**
 * Returns all possible combinations of the given items (including those with length < n).
 *
 * Order of items within the returned combinations is the same as of the given input array.
 */
export declare function combinations<T>(items: T[]): T[][];
/**
 * Generates a globally unique identifier.
 *
 * https://stackoverflow.com/a/2117523
 */
export declare function guid(): string;