/**
 * An error thrown when duplicate names are detected in a route.
 * Names must be unique.
 */
export declare class DuplicateNamesError extends Error {
    /**
     * Constructs a new DuplicateNamesError instance with a message indicating the problematic name.
     * @param name - The name of the name that was duplicated.
     */
    constructor(name: string);
}