@Override
    public String toString() {
      return String.format(
          "(status=%s, keyId=%s, keyType='%s', keyPrefix='%s')",
          this.status, this.keyId, this.keyType, this.keyPrefix);
    }
Description about each entry of the Keyset.
java_src/src/main/java/com/google/crypto/tink/monitoring/MonitoringKeysetInfo.java