code: public com.google.api.ads.admanager.axis.v201811.ProposalLineItemPremium[] getPremiums() {
          return premiums;
      }
docs: Gets the premiums value for this ProposalLineItem.
  
  @return premiums   * The premiums triggered by this {@code ProposalLineItem} and
  their statuses.
  For those triggered premiums whose statues are not
  specified, the default status
  is {@link ProposalLineItemPremiumStatus#INCLUDED}.
  <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>