import { Layer } from "effect";
import { Logger } from "./Logger.js";
/**
 * A `Tracer` whose spans, when ended, write one debug line to the mitools
 * `Logger`: `<name> <duration>ms` with the parent span, the outcome and any
 * span attributes as args. `Effect.fn("Service.method")` names every effect
 * in this library; this is what makes those names visible.
 */
export declare const layerTracer: Layer.Layer<never, never, Logger>;