import type { ObjectSchema, SchemaBase, Static } from "./index.js";
type UnionStatic<TBranches extends readonly ObjectSchema<any>[]> = Static<TBranches[number]>;
export interface UnionSchema<TBranches extends readonly ObjectSchema<any>[]> extends SchemaBase<"union", UnionStatic<TBranches>> {
    readonly branches: TBranches;
}
export declare function getRequiredKeyFingerprint(schema: ObjectSchema<any>): string;
export declare function Union<const TBranches extends readonly ObjectSchema<any>[]>(branches: TBranches): UnionSchema<TBranches>;
export {};