export declare class TwoColumnHelper {
    static colXS: string;
    static colMD: string;
    static colLG: string;
    static spacer: string;
    static hiddenXS: string;
    static leftRightColXS(): string;
    static leftColMD(leftColumnWidth: number): string;
    static leftColLG(leftColumnWidth: number): string;
    static rightColMD(leftColumnWidth: number): string;
    static rightColLG(leftColumnWidth: number): string;
    static leftRightHiddenXS(): string;
    static calculatedLeftColumnMDWidth(leftColumnWidth: number): number;
    static calculatedRightColumnMDWidth(leftColumnWidth: number): number;
    static calculatedRightColumnLGWidth(leftColumnWidth: number): number;
}