code: public com.google.api.ads.adwords.axis.v201809.cm.String_StringMapEntry[] getDisplayValue() {
          return displayValue;
      }
docs: Gets the displayValue value for this ProductBiddingCategoryData.
  
  @return displayValue   * A map of displayValues by their language code. The language
  code is a 2-letter string
  conforming with ISO 639-1 standard.