When adding custom attribute values to transactions, custom events, spans, and errors, the API accepts an
object. This describes how these values are processed and how they will appear in APM. In all cases,
NULL values are not recorded.
How the value will be represented
As an integral value
A decimal-based number
A string truncated after 255-bytes.
Empty strings are supported.
True or false
A string representation following the ISO-8601 format, including time zone information:
A decimal-based number representing number of seconds.
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