import type { InstrumentationDefinition, InstrumentationSetupContext } from "#public/instrumentation/index.js";
/**
 * Registers the authored instrumentation config and invokes its `setup`
 * callback with the resolved agent name.
 *
 * Called once by the generated instrumentation Nitro plugin at server
 * startup. Subsequent calls overwrite the previous value.
 *
 * @internal — not part of the public API.
 */
export declare function registerInstrumentationConfig(config: InstrumentationDefinition, context: InstrumentationSetupContext): void;
/**
 * Returns the registered instrumentation config, or `undefined` when no
 * `defineInstrumentation` export was provided.
 *
 * @internal — not part of the public API.
 */
export declare function getInstrumentationConfig(): InstrumentationDefinition | undefined;