code: public void setRfpType(com.google.api.ads.admanager.axis.v201811.RfpType rfpType) {
          this.rfpType = rfpType;
      }
docs: Sets the rfpType value for this BuyerRfp.
  
  @param rfpType   * Deal type; either Programmatic Guaranteed or Preferred Deal.
  This field
  corresponds to the type of {@link Proposal} that a
  buyer wishes to negotiate with a seller.
  <span class="constraint ReadOnly">This attribute is
  read-only when:<ul><li>using programmatic guaranteed, not using sales
  management.</li><li>using preferred deals, not using sales management.</li></ul></span>