Readonly_Internal marker — consumers must not inspect this type.
Optional Readonlyspan16-character lowercase hex parent span ID (W3C format).
Optional Readonlytrace2-character lowercase hex trace flags (W3C format).
Optional Readonlytrace32-character lowercase hex trace ID (W3C format).
Optional ReadonlytracestateRaw tracestate header value, if present.
Opaque handle representing the parent context for span creation.
In the real (OTel-backed) implementation this wraps the OTel
Context. In noop mode it is unused but still accepted for API parity.Carries the W3C Trace Context fields extracted from incoming
traceparent/tracestateheaders so the realTracerHostcan use them to parent spans.Since
0.2.0