Cud example does not.

[0xdeadcafe]

curl --data @test/cud-messages.json -H "Content-Type: application/json" -X POST https://XXXX.cloudfunctions.net/cud

{"date":"2021-04-01T23:18:58Z","error":"Neo4jError: Expected event.properties to be a map, but it was :NO_VALUE","stack":"Neo4jError: Expected event.properties to be a map, but it was :NO_VALUE\n\n at captureStacktrace (/workspace/node_modules/neo4j-driver/lib/result.js:281:15)\n at new Result (/workspace/node_modules/neo4j-driver/lib/result.js:68:19)\n at newCompletedResult (/workspace/node_modules/neo4j-driver/lib/transaction.js:455:10)\n at Object.run (/workspace/node_modules/neo4j-driver/lib/transaction.js:289:14)\n at Transaction.run (/workspace/node_modules/neo4j-driver/lib/transaction.js:125:32)\n at /workspace/gil/sink/Strategy.js:22:50\n at TransactionExecutor._safeExecuteTransactionWork (/workspace/node_modules/neo4j-driver/lib/internal/transaction-executor.js:134:22)\n at TransactionExecutor._executeTransactionInsidePromise (/workspace/node_modules/neo4j-driver/lib/internal/transaction-executor.js:122:32)\n at /workspace/node_modules/neo4j-driver/lib/internal/transaction-executor.js:61:15\n at new Promise ()\n at TransactionExecutor.execute (/workspace/node_modules/neo4j-driver/lib/internal/transaction-executor.js:60:14)\n at Session._runTransaction (/workspace/node_modules/neo4j-driver/lib/session.js:302:40)\n at Session.writeTransaction (/workspace/node_modules/neo4j-driver/lib/session.js:295:19)\n at CUDBatch.run (/workspace/gil/sink/Strategy.js:22:24)\n at /workspace/gil/sink/DataSink.js:13:72\n at bound (domain.js:427:14)"}