import * as Logger from "effect/Logger";
/**
 * Make a `Logger` that accumulates log events into the current fiber's
 * wide event when one is present, and falls back to `fallback` (default:
 * Effect's default console logger) when it isn't.
 *
 * Inside a wide event:
 * - `Error`/`Fatal` → `log.error(...)` (promotes the event level)
 * - `Warn`          → `log.warn(...)`
 * - everything else → `log.info(...)`
 *
 * Log annotations and log spans ride along as fields on the captured entry.
 */
export declare const make: (options?: {
    readonly fallback?: Logger.Logger<unknown, unknown> | undefined;
}) => Logger.Logger<unknown, void>;
/**
 * Install the bridge as the active Effect logger.
 *
 * With the default (replace) behavior, `Effect.logInfo` outside a wide
 * event still reaches the console via the fallback logger, while inside
 * `withWideEvent` it's folded into the single wide event — no doubled
 * output.
 *
 * ```ts
 * program.pipe(
 *   Effect.provide(EvlogBridge.layer())
 * )
 * ```
 */
export declare const layer: (options?: {
    readonly fallback?: Logger.Logger<unknown, unknown> | undefined;
    readonly mergeWithExisting?: boolean | undefined;
}) => import("effect/Layer").Layer<never, never, never>;
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