code: protected static Map<String, WriteToBigQuery.FieldInfo<KV<String, Integer>>>
        configureGlobalWindowBigQueryWrite() {
  
      Map<String, WriteToBigQuery.FieldInfo<KV<String, Integer>>> tableConfigure =
          configureBigQueryWrite();
      tableConfigure.put(
          "processing_time",
          new WriteToBigQuery.FieldInfo<>(
              "STRING", (c, w) -> GameConstants.DATE_TIME_FORMATTER.print(Instant.now())));
      return tableConfigure;
    }
docs: Create a map of information that describes how to write pipeline output to BigQuery. This map
  is used to write user score sums.