import 'reflect-metadata';
export type FieldLocation = 'path' | 'query' | 'header' | 'body';
export declare function controllerRouteCount(): number;
/** Unique Nest controller path templates (may omit URI version prefix). */
export declare function listControllerPathTemplates(): string[];
/**
 * Map a concrete request path onto a Nest controller OpenAPI template.
 * Prefers the most specific declared route (longest path, fewest params).
 */
export declare function matchControllerTemplate(pathname: string, method?: string): string | null;
/** Returns required flag from DTO metadata, or undefined when unknown (no DTO / no validators). */
export declare function dtoRequired(method: string, pathTemplate: string, location: FieldLocation, fieldName: string): boolean | undefined;