/**
 * Returns true when `p` exists and is a regular file.
 * Returns false for directories, symlinks to directories, missing paths,
 * and any other filesystem error.
 */
export declare function isFile(p: string): boolean;
/**
 * Returns true when `p` exists and is a directory.
 * Returns false for regular files, missing paths, and any other filesystem
 * error.
 */
export declare function isDirectory(p: string): boolean;