import type { CanonSession } from './canonPull.js';
/** Where an archived session's bytes live: git blob ids in the store (part order), plus the events sidecar. */
export interface ArchivedSessionRef {
    store: string;
    /** Repo path of the logical session under archive/ (e.g. archive/2026-08/canon/claude-code/<dir>/<id>.jsonl). */
    path: string;
    blobs: string[];
    sidecarBlob?: string;
    /** False when any of the session's blobs is not in the local object store (partial clone) — never fetched here. */
    local: boolean;
}
/** Sizes of the blobs present locally (missing ones absent from the map) — one batch call, no fetch. */
export declare function localBlobSizes(store: string, shas: string[]): Map<string, number>;
/**
 * Archived canonical sessions (HEAD `archive/<YYYY-MM>/canon/…`) whose logical path is NOT live — a live copy
 * always wins. A session archived in more than one month bucket resolves to the newest bucket. Same grouping and
 * uuid rules as discoverCanonSessions (parts-aware, events sidecars excluded, empty mains skipped).
 */
export declare function discoverArchivedCanonSessions(store: string, live: Iterable<string>, opts?: {
    home?: string;
}): CanonSession[];
/** Stream a session's JSONL lines — disk parts for a live session, git blobs for an archived one. */
export declare function sessionLines(s: CanonSession): AsyncGenerator<string>;
/** Stream the events sidecar's lines (nothing when the session has none). */
export declare function sidecarLines(s: CanonSession): AsyncGenerator<string>;
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