/**
 * Observability Tracing
 *
 * @module observability/tracing
 */
import type { RuntimeAdapter } from "../../platform/adapters/base.js";
import { tracingManager } from "./manager.js";
import type { Context, Span, SpanOptions, TracingConfig } from "./types.js";
export type { Context, Span, SpanOptions, TracingConfig } from "./types.js";
export { loadConfig } from "./config.js";
export { SpanOperations } from "./span-operations.js";
export { ContextPropagation } from "./context-propagation.js";
export { SpanNames } from "./span-names.js";
/** Initialize tracing for the current runtime. */
export declare function initTracing(config?: Partial<TracingConfig>, adapter?: RuntimeAdapter): Promise<void>;
/** Check whether tracing is enabled. */
export declare function isTracingEnabled(): boolean;
export declare function isTracingDegraded(): boolean;
/** Shut down the tracing runtime. */
export declare function shutdownTracing(): void;
export declare function getTracingState(): ReturnType<typeof tracingManager.getState>;
/** Starts span. */
export declare function startSpan(name: string, options?: SpanOptions): Span | null;
/** End an active tracing span. */
export declare function endSpan(span: Span | null, ...failure: [] | [error: unknown]): void;
/** Sets span attributes. */
export declare function setSpanAttributes(span: Span | null, attributes: Record<string, string | number | boolean>): void;
/** Event emitted for add span. */
export declare function addSpanEvent(span: Span | null, name: string, attributes?: Record<string, string | number | boolean>): void;
/** Create child span. */
export declare function createChildSpan(parentSpan: Span | null, name: string, options?: SpanOptions): Span | null;
/** Context for extract. */
export declare function extractContext(headers: Headers): Context | undefined;
/** Context for inject. */
export declare function injectContext(context: Context, headers: Headers): void;
/** Context for get active. */
export declare function getActiveContext(): Context | undefined;
/** Applies active span. */
export declare function withActiveSpan<T>(span: Span | null, fn: () => Promise<T>): Promise<T>;
/** Applies span. */
export declare function withSpan<T>(name: string, fn: (span: Span | null) => Promise<T>, options?: SpanOptions): Promise<T>;
/** Applies span sync. */
export declare function withSpanSync<T>(name: string, fn: (span: Span | null) => T, options?: SpanOptions): T;
export { tracingManager } from "./manager.js";
export { TracingManager } from "./manager.js";
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