/** OpenTelemetry adapter for the framework-neutral durable causality context. */
import { type CausalityContext } from "@nifrajs/core/causality";
import type { ObservationLink } from "./span.js";
/**
 * Convert the nearest observed causal ancestor into an OTel span link. Returns `undefined` instead
 * of inventing a trace identity when the durable context has no observation anchor.
 */
export declare function causalitySpanLink(context: CausalityContext): ObservationLink | undefined;
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