import type { ErrorCategory, RegisteredError } from "./types.js";
export type ErrorRegistryMap = Readonly<Record<string, RegisteredError>>;
type UnionToIntersection<Union> = (Union extends unknown ? (value: Union) => void : never) extends (value: infer Intersection) => void ? Intersection : never;
type ComposedSlugMap<Fragments extends readonly object[]> = UnionToIntersection<Fragments[number]>;
/**
 * Compose slug-keyed fragments without object-spread's silent last-write-wins behavior.
 */
export declare function composeSluggedMaps<const Fragments extends readonly object[]>(collectionName: string, ...fragments: Fragments): Readonly<ComposedSlugMap<Fragments>>;
export declare function composeErrorRegistry<const Fragments extends readonly ErrorRegistryMap[]>(...fragments: Fragments): Readonly<ComposedSlugMap<Fragments>>;
export declare function getRegistryEntry<Registry extends ErrorRegistryMap, Slug extends Extract<keyof Registry, string>>(registry: Registry, slug: Slug): Registry[Slug];
export declare function getRegistryEntry(registry: ErrorRegistryMap, slug: string): RegisteredError | undefined;
export declare function getRegistryEntriesByCategory(registry: ErrorRegistryMap, category: ErrorCategory): RegisteredError[];
export declare function getRegistrySlugs<Registry extends ErrorRegistryMap>(registry: Registry): Array<keyof Registry>;
export {};
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