code: function(corsProxy, overrideUrl) {
    this.url = corsProxy.getURLProxyIfNecessary(
      defaultValue(overrideUrl, DATA61_GNAF_SEARCH_URL)
    );
    this.bulk_url = corsProxy.getURLProxyIfNecessary(
      defaultValue(overrideUrl, DATA61_GNAF_BULK_SEARCH_URL)
    );
  }
docs: Simple JS Api for the Data61 Lucene GNAF service.
  
  @param {CorsProxy} corsProxy CorsProxy to use to determine whether calls need to go through the terria proxy.
  @param {String} [overrideUrl] The URL to use to query the service - will default if not provided.
  @constructor