code: public void setTermsAndConditions(com.google.api.ads.admanager.axis.v201808.ProposalTermsAndConditions[] termsAndConditions) {
          this.termsAndConditions = termsAndConditions;
      }
docs: Sets the termsAndConditions value for this Proposal.
  
  @param termsAndConditions   * A list of terms and conditions for this {@code Proposal}. This
  field is optional.
  <span class="constraint Applicable">This attribute
  is applicable when:<ul><li>not using programmatic, using sales management.</li></ul></span>