export declare const DOCUMENT_CHARACTER_SPACING_ATTRIBUTE = "data-office-character-spacing-twips";
export declare const DOCUMENT_CHARACTER_SPACING_MAX_TWIPS = 31680;
export declare const DOCUMENT_CHARACTER_SPACING_MIN_TWIPS: number;
export declare function normalizeDocumentCharacterSpacingTwips(value: unknown): number | null;
export declare function documentCharacterSpacingDomAttributes(value: unknown): Record<string, string>;
export declare function documentCharacterSpacingTwipsFromElement(element: HTMLElement): number | null;
export declare function documentCharacterSpacingTwipsFromCss(value: unknown): number | null;
export declare function documentCharacterSpacingPoints(value: unknown): number | null;