export declare class Testing123 {
    #private;
    readonly and: number;
    static staticProperty: string;
    static staticFunction: () => string | null;
    /**
     * @param and the number we should and with
     */
    constructor(and: number);
    get something(): number;
    doAsync(): Promise<boolean>;
    /**
     * @description Sets something to something
     * @param something The addition
     */
    setSomething: (something: number) => number;
    toString(): string;
}