code: public void setAgencies(com.google.api.ads.admanager.axis.v201808.ProposalCompanyAssociation[] agencies) {
          this.agencies = agencies;
      }
docs: Sets the agencies value for this Proposal.
  
  @param agencies   * List of agencies and the set of {@link Contact} objects associated
  with each agency.
  This attribute is optional. A {@code Proposal} only
  has at most one
  {@link Company} with {@link ProposalCompanyAssociationType#PRIMARY_AGENCY}
  type,
  but a {@link Company} can appear more than once with
  different
  {@link ProposalCompanyAssociationType} values. If
  primary
  agency exists, its {@link ProposalCompanyAssociation#companyId}
  will be copied to
  {@link Order#agencyId} when the proposal turns into
  an order.