public void setSnapshotId(String snapshotId) {
        this.snapshotId = snapshotId;
    }
<p>
The snapshot that defines the device contents.
</p>

@param snapshotId
       The snapshot that defines the device contents.
aws-java-sdk-imagebuilder/src/main/java/com/amazonaws/services/imagebuilder/model/EbsInstanceBlockDeviceSpecification.java