/**
 * Turn a ReconstructedTurn into a backdated OTEL span tree:
 *
 *   invoke_agent opencode         (root; start/end = turn bounds)
 *   ├─ chat <model>               (one per model call; per-call usage + output)
 *   └─ execute_tool <name>        (one per tool; arguments + result)
 *
 * chat and execute_tool are siblings under the turn (the GenAI-spec convention).
 * Every span carries gen_ai.conversation.id so Weave stitches turns server-side.
 * Start/end times come from the opencode event timestamps, which is the whole
 * point of building spans through the raw OTel API rather than the Weave SDK.
 */
import { type Tracer } from '@opentelemetry/api';
import type { ReconstructedTurn } from '../model.js';
/** Identifiers for one emitted turn, returned so callers can report deep links. */
export interface EmittedTurn {
    turnId: string;
    /** == sessionId; the key Weave stitches turns into a conversation by. */
    conversationId: string;
    /** OTEL trace id (32 hex) of the turn's span tree. */
    traceId: string;
}
export declare function emitTurn(tracer: Tracer, turn: ReconstructedTurn, captureContent: boolean): EmittedTurn;