Sampled | Turns on or off sampling for the associated message, if value is true sampling is on |
SpanId | Sets the value of the span identifier associated with this message {@code TraceContext} as 8-byte array. |
TraceId | Sets the value of the trace identifier associated with this message as 16-byte array. |
TraceState | Sets the value of the trace state associated with this message. See w3c trace state format specification |