import { ExamComponentOrChooserSpecification, ExamSpecification, QuestionSpecification, SectionSpecification } from "./core/exam_specification";
import { ExamComponentSkin } from "./core/skins";
export declare namespace ExamDiff {
    type ShallowSpecProperty<T> = T extends readonly (infer E)[] ? ShallowSpecProperty<E>[] : T extends ExamComponentSkin ? {
        skin_id: string;
    } : T extends QuestionSpecification ? {
        question_id: string;
    } : T extends SectionSpecification ? {
        section_id: string;
    } : T extends ExamSpecification ? {
        exam_id: string;
    } : ShallowSpecification<T>;
    type ShallowSpecification<T> = {
        [P in keyof T]: ShallowSpecProperty<T[P]>;
    };
    export function shallowCopy<T extends ExamComponentOrChooserSpecification = ExamComponentOrChooserSpecification>(spec: ExamComponentOrChooserSpecification): ShallowSpecification<T>;
    export function exam_shallow_diff(spec1: ExamSpecification, spec2: ExamSpecification): {
        op: import("just-diff").Operation;
        path: Array<string | number>;
        value: any;
    }[];
    type ExamComponentDiff<T extends ExamComponentOrChooserSpecification> = Partial<Record<keyof T, boolean>>;
    export function shallowDiff<T extends ExamComponentOrChooserSpecification>(spec1: T, spec2: T): ExamComponentDiff<T> | undefined;
    export {};
}