text: #ifndef H_WARDEN_PII
  #define H_WARDEN_PII
  
  #include <stdlib.h>
  
  #include "warden.h"
  
  bool warden_check_email(const char *, size_t);
  
  bool warden_check_phone_number(const char *, size_t);
  
  bool warden_check_address(const char *, size_t);
  
  bool warden_check_creditcard(const char *, size_t);
  
  #endif
  