in src/GetRevision.ts [43:58]
async function getRevision(
ledgerName: string,
documentId: string,
blockAddress: ValueHolder,
digestTipAddress: ValueHolder,
qldbClient: QLDB
): Promise<GetRevisionResponse> {
const request: GetRevisionRequest = {
Name: ledgerName,
BlockAddress: blockAddress,
DocumentId: documentId,
DigestTipAddress: digestTipAddress
};
const result: GetRevisionResponse = await qldbClient.getRevision(request).promise();
return result;
}