Struct WideEventRecord 

pub struct WideEventRecord {
    pub subsystem: &'static str,
    pub duration: Duration,
    pub fields: HashMap<&'static str, Value>,
    pub trace_id: Option<String>,
    pub span_id: Option<String>,
}

A finalized wide event record ready for formatting.

Contains the accumulated fields and timing data. The timestamp is formatted separately by the layer’s FormatTime implementation.

Fields

subsystem: &'static str

The subsystem label (e.g. "http", "grpc").

duration: Duration

Wall-clock duration from event creation to emit.

fields: HashMap<&'static str, Value>

Accumulated key-value fields.

trace_id: Option<String>

OpenTelemetry trace ID, if the opentelemetry feature is enabled.

span_id: Option<String>

OpenTelemetry span ID, if the opentelemetry feature is enabled.