import type { HtmdxComponent } from '../component-definition';
import type { SkillTopicContent } from './skill';
export type ExternalDefinitions = {
    specifier: string;
    components: HtmdxComponent[];
    layouts: string[];
    themes: number;
};
export declare class DefinitionsError extends Error {
}
export declare function loadExternalDefinitions(specifier: string): Promise<ExternalDefinitions>;
export declare function externalSkillTopic(external: ExternalDefinitions): SkillTopicContent;