export declare function createOriginGuard(options: OriginGuardOptions): OriginGuard;
export declare interface OriginGuardOptions {
  header: string
  value: string
  hosts: string[]
  exemptPaths?: string[]
  forbiddenMessage?: string
}
export declare interface OriginGuard {
  (req: Request): Response | undefined
  protects: (hostname: string) => boolean
}