Trace (opentelemetry.Opentelemetry.Trace)

type span = Span.t

val emit : span list -> unit

Sync emitter

val with_ : 
  ?trace_state:string ->
  ?service_name:string ->
  ?attrs:Span.key_value list ->
  ?kind:Span.kind ->
  ?trace_id:Trace_id.t ->
  ?parent:Span.id ->
  ?links:(Trace_id.t * Span_id.t * string) list ->
  string ->
  ( (Trace_id.t * Span_id.t) -> 'a ) ->
  'a

Sync span guard