SYMBOL INDEX (5 symbols across 3 files)

FILE: error.d.ts
  class UnauthorizedError (line 1) | class UnauthorizedError extends Error {

FILE: index.d.ts
  type GuardOptions (line 3) | interface GuardOptions {
  class Guard (line 8) | class Guard {

FILE: index.js
  function isString (line 18) | function isString (value) {
  function isArray (line 22) | function isArray (value) {