src/main/java/software/amazon/qldb/tutorial/model/streams/Revision.java [106:115]:
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    public BlockAddress getBlockAddress() {
        return blockAddress;
    }

    public RevisionMetadata getMetadata() {
        return metadata;
    }

    public byte[] getHash() {
        return hash;
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src/main/java/software/amazon/qldb/tutorial/qldb/QldbRevision.java [61:80]:
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    public BlockAddress getBlockAddress() {
        return blockAddress;
    }

    /**
     * Gets the metadata of the revision.
     *
     * @return the {@link RevisionMetadata} object.
     */
    public RevisionMetadata getMetadata() {
        return metadata;
    }

    /**
     * Gets the SHA-256 hash value of the data.
     *
     * @return the byte array representing the hash.
     */
    public byte[] getHash() {
        return hash;
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