How to use the terriajs/lib/Models/CatalogItem.defaultSerializers function in terriajs

);
MagdaCatalogItem.defaultUpdaters.geoJsonDistributionFormat = createRegexDeserializer(
    "geoJsonDistributionFormat"
);
MagdaCatalogItem.defaultUpdaters.czmlDistributionFormat = createRegexDeserializer(
    "czmlDistributionFormat"
);

freezeObject(MagdaCatalogItem.defaultUpdaters);

/**
 * Gets or sets the set of default serializer functions to use in {@link CatalogMember#serializeToJson}.  Types derived from this type
 * should expose this instance - cloned and modified if necesary - through their {@link CatalogMember#serializers} property.
 * @type {Object}
 */
MagdaCatalogItem.defaultSerializers = clone(CatalogItem.defaultSerializers);

MagdaCatalogItem.defaultSerializers.wmsDistributionFormat = createRegexSerializer(
    "wmsDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.wfsDistributionFormat = createRegexSerializer(
    "wfsDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.kmlDistributionFormat = createRegexSerializer(
    "kmlDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.csvDistributionFormat = createRegexSerializer(
    "csvDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.esriMapServerDistributionFormat = createRegexSerializer(
    "esriMapServerDistributionFormat"
);

);
MagdaCatalogItem.defaultUpdaters.geoJsonDistributionFormat = createRegexDeserializer(
  "geoJsonDistributionFormat"
);
MagdaCatalogItem.defaultUpdaters.czmlDistributionFormat = createRegexDeserializer(
  "czmlDistributionFormat"
);

freezeObject(MagdaCatalogItem.defaultUpdaters);

/**
 * Gets or sets the set of default serializer functions to use in {@link CatalogMember#serializeToJson}.  Types derived from this type
 * should expose this instance - cloned and modified if necesary - through their {@link CatalogMember#serializers} property.
 * @type {Object}
 */
MagdaCatalogItem.defaultSerializers = clone(CatalogItem.defaultSerializers);

MagdaCatalogItem.defaultSerializers.wmsDistributionFormat = createRegexSerializer(
  "wmsDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.wfsDistributionFormat = createRegexSerializer(
  "wfsDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.kmlDistributionFormat = createRegexSerializer(
  "kmlDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.csvDistributionFormat = createRegexSerializer(
  "csvDistributionFormat"
);
MagdaCatalogItem.defaultSerializers.esriMapServerDistributionFormat = createRegexSerializer(
  "esriMapServerDistributionFormat"
);