import { STObjectBase } from "./STObjectBase";
/**
 * A non-nil value to represent an intended
 * emtpy result that is not supposed to
 * possibly throw an exception.
 */
export declare class STEmpty extends STObjectBase {
    static readonly INSTANCE: STEmpty;
    private constructor();
    getClassName(): string;
    toString(): string;
    isNil(): boolean;
    static getInstance(): STEmpty;
}