code: public EventBuilder withFingerprint(String... fingerprint) {
          List<String> list = new ArrayList<>(fingerprint.length);
          Collections.addAll(list, fingerprint);
          event.setFingerprint(list);
          return this;
      }
docs: Sets event fingerprint, an array of strings used to dictate the deduplicating for this event.
  
  @param fingerprint fingerprint
  @return the current {@code EventBuilder} for chained calls.