import type { RouteResponseMap, RouteSchema } from './types/schema.js';
/** Return true when the response schema is a status-keyed response map. */
export declare function isResponseMap(response: RouteSchema['response']): response is RouteResponseMap;
/** Return true when the marker represents a declared error response. */
export declare function isErrorMarker(marker: unknown): boolean;
/** Return true when the marker represents a success response. */
export declare function isSuccessMarker(marker: unknown): boolean;
/** Find the default success status for a direct handler result. */
export declare function getResponseMapPluginIds(responseMap: RouteResponseMap): string[];
export declare function getDefaultSuccessStatus(responseMap: RouteResponseMap): number;