"uid": "${datasource}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "fixedColor": "rgb(31, 120, 193)",
            "mode": "fixed"
          },
          "mappings": [
            {
              "options": {
                "match": "null",
                "result": {
                  "text": "N/A"
                }
              },
              "type": "special"

        "uid": "${datasource}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "fixedColor": "rgb(31, 120, 193)",
            "mode": "fixed"
          },
          "mappings": [
            {
              "options": {
                "match": "null",
                "result": {
                  "text": "N/A"
                }
              },
              "type": "special"

            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {

    }
  }

  // Replacement mappings.
  private final Map<Character, String> map;

  // The highest index we've seen so far.
  private int max = -1;

  /** Construct a new sparse array builder. */
  public CharEscaperBuilder() {
    this.map = new HashMap<>();
  }

  /** Add a new mapping from an index to an object to the escaping. */
  @CanIgnoreReturnValue

    return map.size();
  }

  /** Returns {@code true} if this map contains no key-value mappings. */
  public boolean isEmpty() {
    return map.isEmpty();
  }

  /**
   * Removes all of the mappings from this map. The map will be empty after this call returns.
   *
   * <p>This method is not atomic: the map may not be empty after returning if there were concurrent
   * writes.
   */
  public void clear() {

        #    }
        #}

        # o typeMappingMap: (NotRequired - Default map:{NUMERIC=$$AutoMapping$$ ; DECIMAL=$$AutoMapping$$})
        #  If you want to change mappings from default mappings, you can specify your original mappings.
        #  But it is possible that unanticipated problems occurs, so be careful!
        #; typeMappingMap = map:{

   * href="https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#type-inference-instantiation">"diamond"
   * syntax</a>.
   *
   * @param map the mappings to be placed in the new map
   * @return a new {@code HashMap} initialized with the mappings from {@code map}
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call

   * href="https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#type-inference-instantiation">"diamond"
   * syntax</a>.
   *
   * @param map the mappings to be placed in the new map
   * @return a new {@code HashMap} initialized with the mappings from {@code map}
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call

{
  "fess_log.user_info" : {
    "aliases" : { },
    "mappings" : {
      "user_info" : {
        "properties" : {
          "createdAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          },
          "updatedAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          }
        }
      }
    },
    "settings" : {
      "index" : {

{
  "fess_config.crawling_info_param" : {
    "aliases" : { },
    "mappings" : {
      "crawling_info_param" : {
        "properties" : {
          "crawlingInfoId" : {
            "type" : "keyword"
          },
          "createdTime" : {
            "type" : "long"
          },
          "key" : {
            "type" : "keyword"
          },
          "value" : {
            "type" : "keyword"
          }
        }