/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import type { Metric, TraceCallback, TraceFunction, TraceManagedContext } from '../types.js';
/**
 * No-op trace implementation used when tracing is unavailable or disabled.
 */
export declare const noopTrace: TraceFunction;
/**
 * No-op metric implementation used when the OTel metrics API is unavailable.
 */
export declare function noopMetric(): Metric;
/**
 * Creates a callback/manually-managed trace context that safely does nothing.
 */
export declare function noopContext<TRecord extends object, TActions extends object>(): TraceManagedContext<TRecord, TActions>;
export declare function noopContext<TRecord extends object, TActions extends object, TReturn>(callback: TraceCallback<TRecord, TActions, TReturn>): TReturn;