Unclear C# Array Support

[EduardGeorgiev]

Description
Hey folks! Seems like NR supports arrays - https://docs.newrelic.com/docs/query-your-data/nrql-new-relic-query-language/get-started/arrays-in-nrql/ but I am not sure how to log it with C#. If I try to use
NewRelicAgent.GetAgent().CurrentTransaction.ddCustomAttribute("key", arrayObject);
it fails saying it cannot serialize the array.
If I instead use
NewRelicAgent.GetAgent().CurrentTransaction.ddCustomAttribute("key", jsonSerializedArrayObject);
It seems like NR treats it like a normal string instead of realizing its an array.

Expected Behavior
Array are logged in NR and I can use the described features in https://docs.newrelic.com/docs/query-your-data/nrql-new-relic-query-language/get-started/arrays-in-nrql/

Steps to Reproduce
NewRelicAgent.GetAgent().CurrentTransaction.ddCustomAttribute("key", arrayObject);
or
NewRelicAgent.GetAgent().CurrentTransaction.ddCustomAttribute("key", jsonSerializedArrayObject);
in C# code. Note the parameter value names, it indicates what they are.

Your Environment
C#

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[workato-integration]

https://new-relic.atlassian.net/browse/NR-198868

[EduardGeorgiev]

Closed as I believe I am on an older version, despite upgrading, something seems to be wrong with the project.