import type { Store } from "./types.js";
/**
 * Stats returned by `exportBundle`.
 */
export type ExportStats = {
    nodes: number;
    vars: number;
    tags: number;
};
/**
 * Options for `importBundle`.
 */
export type ImportOptions = {
    /** Replace the original `@scope` of each non-builtin variable with this value. */
    scope?: string;
};
/**
 * Stats returned by `importBundle`.
 */
export type ImportStats = {
    nodes: {
        imported: number;
        skipped: number;
    };
    vars: {
        created: number;
        updated: number;
    };
    tags: number;
};
/**
 * Compute the transitive CAS closure of `roots`, write a tar archive at
 * `outputPath` containing all CAS nodes (`cas/<hash>.bin`), variables
 * (`vars.jsonl`), and tags (`tags.jsonl`).
 */
export declare function exportBundle(store: Store, roots: string[], outputPath: string): Promise<ExportStats>;
/**
 * Read a bundle from disk and apply its contents to `target`.
 */
export declare function importBundle(bundlePath: string, target: Store, options?: ImportOptions): Promise<ImportStats>;
/**
 * Build a read-only `Store` whose contents come from a bundle tar file.
 */
export declare function loadBundleStore(bundlePath: string): Promise<Store>;
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