code: public void setChildContentEligibility(com.google.api.ads.admanager.axis.v201902.ChildContentEligibility childContentEligibility) {
          this.childContentEligibility = childContentEligibility;
      }
docs: Sets the childContentEligibility value for this LineItemSummary.
  
  @param childContentEligibility   * Child content eligibility designation for this line item.
  
  <p>This field is optional and defaults to {@link ChildContentEligibility#DISALLOWED}.