/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
/**
 * Map of catalogName → { packageName → versionRange }.
 * The default catalog (defined under `catalog:` in pnpm-workspace.yaml) is stored under the key "default".
 */
export type PnpmCatalogMap = Map<string, Record<string, string>>;
/**
 * Reads the pnpm-workspace.yaml at `workspaceRoot` and returns the catalog entries.
 * Returns an empty map if the file doesn't exist or has no catalogs.
 */
export declare function readPnpmCatalogs(workspaceRoot: string): PnpmCatalogMap;
/**
 * If `version` starts with "catalog:", looks up the real version from `catalogs`.
 * Otherwise returns `version` unchanged.
 *
 * Resolution rules (per pnpm spec):
 * - `catalog:` or `catalog:default` → look in the "default" entry (the `catalog:` section)
 * - `catalog:X` → look in the `catalogs.X` entry
 *
 * @throws If the referenced catalog or package is not found.
 */
export declare function resolveCatalogVersion(packageName: string, version: string, catalogs: PnpmCatalogMap): string;
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