import type { SessionEntry, SessionHeader } from "../../session-manager-types.ts";
import { type SessionJsonValue } from "./errors.js";
export interface StoredSessionHeader {
    readonly type?: SessionJsonValue;
    readonly version?: SessionJsonValue;
    readonly id?: SessionJsonValue;
    readonly timestamp?: SessionJsonValue;
    readonly createdAt?: SessionJsonValue;
    readonly cwd?: SessionJsonValue;
    readonly parentSession?: SessionJsonValue;
    readonly internal?: SessionJsonValue;
    readonly workflow?: SessionHeader["workflow"] | SessionJsonValue;
}
export declare function isCurrentSessionHeader(stored: StoredSessionHeader): boolean;
export declare function upgradeLegacySessionHeader(stored: StoredSessionHeader, path: string): SessionHeader;
export declare function upgradeLegacySessionEntries(stored: StoredSessionHeader, entries: readonly SessionEntry[], path: string): {
    header: SessionHeader;
    entries: SessionEntry[];
};
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