Helper method to serialize a timestamp as an ISO-8601 datetime string, with minimal GC allocation. The format is "YYYY-MM-DDTHH:MM:SS.sss".
The timestamp to format.
The formatted timestamp as a string.
Helper method to serialize a timestamp as an ISO-8601 datetime string, with minimal GC allocation. The format is "YYYY-MM-DDTHH:MM:SS.sss".