public String getMFA() {
        return this.mFA;
    }
<p>
The concatenation of the authentication device's serial number, a space, and the value that is displayed on your
authentication device.
</p>

@return The concatenation of the authentication device's serial number, a space, and the value that is displayed
        on your authentication device.
aws-java-sdk-s3control/src/main/java/com/amazonaws/services/s3control/model/PutBucketVersioningRequest.java