/**
 * Registers the AI SDK OpenTelemetry integration once so that model
 * calls emit OTel spans, including runtime-context attributes. Safe to
 * call multiple times — only the first call has an effect.
 *
 * In AI SDK v7 the built-in OTel tracing was moved to `@ai-sdk/otel`
 * and must be registered explicitly.
 */
export declare function ensureOtelIntegration(): void;