import { PersonAction } from './person-action';
import { SimpleDate } from '../simple-date';
import { PersonSituation } from '../person-situation';
export declare class MakePropertyImprovementAction implements PersonAction {
    date: SimpleDate;
    private cost;
    private addedValue;
    private propertyIdx;
    constructor(date: SimpleDate, cost: number, addedValue: number, propertyIdx?: number);
    execute(situation: PersonSituation): void;
}