import type { FabricEvent, SessionEntry } from './types.js';
export interface TelemetrySpan {
    name: string;
    startedAt: string;
    endedAt: string;
    durationMs: number;
    attributes: Record<string, string | number | boolean>;
}
export interface TelemetryExporter {
    export(span: TelemetrySpan): void | Promise<void>;
}
export declare function eventToTelemetrySpan(event: FabricEvent): TelemetrySpan | undefined;
export declare function entryToTelemetrySpan(sessionId: string, entry: SessionEntry): TelemetrySpan | undefined;
/**
 * Telemetry exporter that writes spans through the SDK logger (default
 * `console`-backed). Useful for local development and as a fallback when no
 * OpenTelemetry collector is wired up. Use {@link openTelemetryExporter} or
 * {@link langfuseExporter} for production.
 */
export declare function consoleTelemetryExporter(prefix?: string): TelemetryExporter;
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