/**
 * @file Package.json path resolution utilities.
 */
/**
 * Whether `filepath`'s final segment is exactly `package.json`. Accepts both
 * POSIX and Windows-style separators so paths captured on either platform
 * classify the same regardless of the host we're running on.
 */
export declare function isPackageJsonFile(filepath: string): boolean;
/**
 * Resolve directory path from a package.json file path.
 */
export declare function resolvePackageJsonDirname(filepath: string): string;
/**
 * Resolve full path to package.json from a directory or file path.
 */
export declare function resolvePackageJsonPath(filepath: string): string;
