import { SkinChooserSpecification } from "./exam_specification";
export type SkinReplacements = {
    [index: string]: string;
};
export type ExamComponentSkin = {
    readonly component_kind?: "skin";
    readonly skin_id: string;
    readonly non_composite_skin_id?: string;
    readonly replacements: SkinReplacements;
};
export declare const DEFAULT_SKIN: ExamComponentSkin;
export declare function isDefaultSkin(skin: ExamComponentSkin): boolean;
export declare function compositeSkinId(section_skin_id: string, question_skin_id: string): string;
export declare function createCompositeSkin(sectionSkin: ExamComponentSkin, questionSkin: ExamComponentSkin): ExamComponentSkin;
export declare function SINGLE_REPLACEMENT_SKINS(target: string, replacements: readonly string[]): ExamComponentSkin[];
export declare function RANDOM_SKIN(skins: readonly ExamComponentSkin[]): SkinChooserSpecification;