code: public void setInventoryTargeting(com.google.api.ads.admanager.axis.v201805.InventoryTargeting inventoryTargeting) {
          this.inventoryTargeting = inventoryTargeting;
      }
docs: Sets the inventoryTargeting value for this Targeting.
  
  @param inventoryTargeting   * Specifies what inventory is targeted by the {@link LineItem}.
  This attribute is required. The
  line item must target at least one ad unit or placement.