export declare function clearTextMeasurementCache(): void;
export declare function estimateStringPixelLength(str: string, fontSize: number, fontWidthToHeightRatio?: number): number;
export declare function measureTextWidth(str: string, font: string): number;
export declare function getCachedFontSizePx(el: Element): number;
export declare function getCachedFontFamily(el: Element): string;
export declare function getCachedComputedTextLength(el: SVGTextElement | SVGTSpanElement): number;
export declare function getPreciseStringLengthPx(str: string, fontFamily: string, fontSize: string | number, fontWeight?: string | number): number;