import { STObjectBase } from "./STObjectBase";
/**
 * A wrapper-class to represent booleans in Smalltalk
 * code.
 */
export declare class STBoolean extends STObjectBase {
    static readonly TRUE: STBoolean;
    static readonly FALSE: STBoolean;
    readonly value: boolean;
    constructor(value: boolean);
    static from(value: boolean): STBoolean;
    private firstArgAsBool(message);
    combine(other: STBoolean, combiner: (a: boolean, b: boolean) => boolean): STBoolean;
    toString(): string;
}