docs: public int getRetryAfter() {
          int retryAfter = -1;
          if (this.statusCode == 400) {
              RateLimitStatus rateLimitStatus = getRateLimitStatus();
              if (rateLimitStatus != null) {
                  retryAfter = rateLimitStatus.getSecondsUntilReset();
              }
          } else if (this.statusCode == ENHANCE_YOUR_CLAIM) {
              try {
                  String retryAfterStr = response.getResponseHeader("Retry-After");
                  if (retryAfterStr != null) {
                      retryAfter = Integer.valueOf(retryAfterStr);
                  }
              } catch (NumberFormatException ignore) {
              }
          }
          return retryAfter;
      }