public void setPolicyHash(String policyHash) {
        this.policyHash = policyHash;
    }
<p>
A cryptographic hash of the contents of the policy used to prevent unexpected concurrent modification of the
policy.
</p>

@param policyHash
       A cryptographic hash of the contents of the policy used to prevent unexpected concurrent modification of
       the policy.
aws-java-sdk-cleanroomsml/src/main/java/com/amazonaws/services/cleanroomsml/model/GetConfiguredAudienceModelPolicyResult.java