ReadonlyflagsThe trace-flags byte as received — 2 lowercase hex — so a re-format keeps every bit (W3C level 2's random).
ReadonlyoperationThe W3C parent-id — 16 lowercase hex, not all zeros. The library's word for it is "operation".
ReadonlysampledBit 0 of flags.
Readonlytrace32 lowercase hex, not all zeros.
A parsed
traceparent: the W3C trace-id, the parent-id (the caller's unit of work), and its trace-flags.