public void setKeyArn(String keyArn) {
        this.keyArn = keyArn;
    }
<p>
The <code>KeyARN</code> of the key to associate with the alias.
</p>

@param keyArn
       The <code>KeyARN</code> of the key to associate with the alias.
aws-java-sdk-paymentcryptography/src/main/java/com/amazonaws/services/paymentcryptography/model/CreateAliasRequest.java