import { TRolloverTooltipDataTemplate } from "../../ChartModifiers/RolloverModifier";
/** @ignore */
export declare const defaultTooltipDataTemplate: TRolloverTooltipDataTemplate;
/** @ignore */
export declare const calcTooltipWidth: (textLength?: number, fontSize?: number) => number;
/** @ignore */
export declare const calcTooltipHeight: (lines?: number, fontSize?: number) => number;