interface DocxRunFormattingChangePatch {
    start: string;
    end: string;
    id: number;
    author: string;
    date: string;
    before: string;
}
export declare class DocxRunFormattingChangePatchCollector {
    readonly patches: DocxRunFormattingChangePatch[];
    register(element: HTMLElement, id: number): {
        start: string;
        end: string;
    } | null;
}
export declare function patchDocxRunFormattingChanges(buffer: ArrayBuffer, patches: readonly DocxRunFormattingChangePatch[]): Promise<ArrayBuffer>;
export {};