/**
 * Detects which package manager owns a project so commands install with the
 * same tool the project was set up with.
 */
export declare const PACKAGE_MANAGERS: readonly ["pnpm", "npm", "yarn", "bun"];
export type PackageManager = typeof PACKAGE_MANAGERS[number];
export declare const DEFAULT_PACKAGE_MANAGER: PackageManager;
export declare function isPackageManager(value: string): value is PackageManager;
/**
 * Detects the package manager for a project, walking up from the given
 * directory so this works from a subfolder of the project.
 *
 * A `packageManager` field wins over a lockfile in the same directory, and the
 * nearest directory with either wins over anything further up. Falls back to
 * pnpm: Nevermore projects are pnpm projects — the templates pin it and gate it
 * behind `only-allow pnpm` — so pnpm is the right guess for a directory that
 * hasn't declared anything yet.
 */
export declare function detectPackageManagerAsync(startDirectory: string): Promise<PackageManager>;
/**
 * Builds the command that adds dependencies to a project. Only npm spells this
 * `install`; the rest treat a bare `install` as "install the lockfile" and need
 * `add` to record new dependencies.
 */
export declare function buildAddPackagesCommand(packageManager: PackageManager, packages: string[]): {
    command: string;
    args: string[];
};
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