public ImportTr31KeyBlock getTr31KeyBlock() {
        return this.tr31KeyBlock;
    }
<p>
Parameter information for key material import using symmetric TR-31 key exchange method.
</p>

@return Parameter information for key material import using symmetric TR-31 key exchange method.
aws-java-sdk-paymentcryptography/src/main/java/com/amazonaws/services/paymentcryptography/model/ImportKeyMaterial.java