export declare const currentOtelSpan: Effect<Otel.Span, NoSuchElementException>

export declare const make: Effect<EffectTracer, never, Otel.Tracer>

export declare const makeExternalSpan: (options: {
  readonly traceId: string
  readonly spanId: string
  readonly traceFlags?: number | undefined
  readonly traceState?: string | Otel.TraceState | undefined
}) => ExternalSpan

export declare const layer: Layer<never, never, Otel.TracerProvider | Resource>

export declare const layerGlobal: Layer<never, never, Resource>

export declare const layerGlobalTracer: Layer<Otel.Tracer, never, Resource>

export declare const layerTracer: Layer<Otel.Tracer, never, Otel.TracerProvider | Resource>

export declare const withSpanContext: {
  (spanContext: Otel.SpanContext): <A, E, R>(effect: Effect<A, E, R>) => Effect<A, E, Exclude<R, ParentSpan>>
  <A, E, R>(effect: Effect<A, E, R>, spanContext: Otel.SpanContext): Effect<A, E, Exclude<R, ParentSpan>>
}

export declare const TraceFlags: Tag<Otel.TraceFlags, Otel.TraceFlags>

export declare const TraceState: Tag<Otel.TraceState, Otel.TraceState>

export declare const Tracer: Tag<Otel.Tracer, Otel.Tracer>

export declare const TracerProvider: Tag<Otel.TracerProvider, Otel.TracerProvider>