public String getChecksum() {
        return this.checksum;
    }
<p>
A Base64-encoded SHA256 checksum of the data. Only SHA256 checksums are supported.
</p>

@return A Base64-encoded SHA256 checksum of the data. Only SHA256 checksums are supported.
aws-java-sdk-ebs/src/main/java/com/amazonaws/services/ebs/model/PutSnapshotBlockRequest.java