export declare const DOCX_EXPLICIT_ZERO_CHARACTER_SPACING_SENTINEL: number;
export declare function docxCharacterSpacingValue(value: unknown): number | undefined;
export declare function docxCharacterSpacingTwipsFromProperties(properties: Element | null | undefined): number | undefined;
export declare function patchDocxExplicitZeroCharacterSpacing(buffer: ArrayBuffer): Promise<ArrayBuffer>;