import type { QuizRecord, ReviewRating } from "../contracts.js";
export declare const QUIZ_GRADER_LEASE_MS: number;
export type QuizGraderBinding = {
    readonly quizId: string;
    readonly ownerHash: string;
};
export type QuizGraderPayload = {
    readonly date: string;
    readonly revision: number;
    readonly submissionId: string;
};
export declare function gradingSubmissionId(quiz: Pick<QuizRecord, "quizId" | "revision">): string;
export declare function quizGraderPayload(quiz: Pick<QuizRecord, "date" | "quizId" | "revision">): QuizGraderPayload;
export declare function quizGraderPayloadText(quiz: Pick<QuizRecord, "date" | "quizId" | "revision">): string;
export declare function parseQuizGraderPayload(value: unknown): QuizGraderPayload | undefined;
export declare function quizGraderBindingText(quizId: string, ownerHash: string): string;
export declare function parseQuizGraderBinding(value: unknown): QuizGraderBinding | undefined;
type ReplayReading = {
    readonly pageId: string;
    readonly anchor: string;
    readonly heading?: string;
};
type ReplayPage = {
    readonly pageId: string;
    readonly rating: ReviewRating | string;
    readonly feedback?: string;
    readonly evidence?: readonly string[];
    readonly readings?: readonly ReplayReading[];
};
type ReplayQuestion = {
    readonly questionId: string;
    readonly feedback?: string;
};
export declare function gradingReplayKey(questions: readonly ReplayQuestion[], pages: readonly ReplayPage[]): string;
export {};
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