code: public com.google.api.ads.admanager.axis.v201805.LinkStatus getLinkStatus() {
          return linkStatus;
      }
docs: Gets the linkStatus value for this ProposalLineItem.
  
  @return linkStatus   * The status of the link between this {@code ProposalLineItem}
  and its {link Product}.
  <span class="constraint Applicable">This attribute
  is applicable when:<ul><li>using programmatic guaranteed, using sales
  management.</li><li>not using programmatic, using sales management.</li></ul></span>
  <span class="constraint ReadOnly">This attribute is read-only when:<ul><li>using
  programmatic guaranteed, using sales management.</li><li>not using
  programmatic, using sales management.</li></ul></span>