import { Extension } from '@tiptap/core';
export interface DocumentPageChromeImageOptions {
    alt: string;
    source: string;
}
declare module '@tiptap/core' {
    interface Commands<ReturnType> {
        documentPageChrome: {
            insertDocumentPageChromeImage: (options: DocumentPageChromeImageOptions) => ReturnType;
            setDocumentPageChromeLink: (href: string | null) => ReturnType;
        };
    }
}
export declare const DocumentPageChromeCommands: Extension<any, any>;
export declare function normalizeDocumentPageChromeHref(value: string): string | null;