import { BaseRenderer } from "handsontable/renderers";
import { ElementApiModel } from "../../services/element.service";
export declare function isValidDate(d: any): boolean;
export declare class Period {
    private month;
    getMonth(): number;
    setMonth(month: number): void;
    private year;
    getYear(): number;
    setYear(year: number): void;
    constructor(year: number, month: number);
    getBeginDate(): Date;
    getEndDate(): Date;
    static getCurrentPeriod(): Period;
    static compare(p1: Period, p2: Period): -1 | 0 | 1;
    static fromDate(date: Date): Period;
    plusMonth(months: number): void;
    minusMonth(months: number): void;
    toString(separator?: string): string;
    clone(): Period;
    getDays(): number;
}
export declare type ElementModel = ElementApiModel & {
    elementCode: string;
    elementName: string;
    level: number;
    open: boolean;
    [key: string]: any;
};
export declare type Row = {
    [key: string]: any;
};
export declare const renderData: (elements: ElementModel[] | null, ratio: number) => Row[] | null;
export declare function createColumn(data: string, width: number, preRenderer?: BaseRenderer, postRenderer?: BaseRenderer): {
    data: string;
    width: number;
    renderer: typeof import("handsontable/renderers").baseRenderer;
};
export declare const getUnit: (ratio: number) => string;