export type PackageManager = "npm" | "pnpm" | "yarn" | "bun";
/**
 * Options for `detectPackageManager`.
 */
export interface DetectPackageManagerOptions {
    /**
     * Stop walking up the directory tree at this path (inclusive). Useful in
     * tests or isolated environments where walking above the project root would
     * accidentally find a lockfile in an unrelated ancestor directory (e.g. a
     * stale `/tmp/package-lock.json` on a shared CI machine).
     *
     * If omitted the walk continues all the way to the filesystem root.
     */
    stopAt?: string;
}
/**
 * Detect the package manager in use by looking for the lockfile closest to
 * `dir`. Walks up to the filesystem root (or `options.stopAt`, if supplied).
 * Returns "bun" as the default when no lockfile is found.
 */
export declare function detectPackageManager(dir: string, options?: DetectPackageManagerOptions): Promise<PackageManager>;
/**
 * Returns the install command for a missing package, using the detected PM.
 */
export declare function installCommand(pkg: string, dir: string): Promise<string>;
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