code: public com.google.api.ads.admanager.axis.v201805.InventoryTargeting getInventoryRule() {
          return inventoryRule;
      }
docs: Gets the inventoryRule value for this FirstPartyAudienceSegmentRule.
  
  @return inventoryRule   * Specifies the inventory (i.e. ad units and placements) that
  are part of the rule of a
  {@link FirstPartyAudienceSegment}. This attribute
  is required.