import type { ParseContext, Simplify } from '../../types.js';
import { Schema } from '../Schema.js';
import { ObjectSchema, type ExtractShape, type Shape } from './ObjectSchema.js';
type InferUnion<T extends Schema[]> = Simplify<T[number] extends Schema<infer U> ? U : never>;
export declare class UnionSchema<T extends [Schema, ...Schema[]]> extends Schema<InferUnion<T>> {
    protected readonly schemas: T;
    constructor(schemas: T);
    protected _normalize(input: unknown, ctx: ParseContext): InferUnion<T>;
    protected cloneArgs(): unknown[];
}
export declare class DiscriminatedUnionSchema<T extends [ObjectSchema<Shape>, ...ObjectSchema<Shape>[]], D extends Extract<keyof ExtractShape<T[number]>, string>> extends UnionSchema<T> {
    protected readonly discriminator: D;
    protected readonly schemas: T;
    constructor(discriminator: D, schemas: T);
    protected _normalize(input: unknown, ctx: ParseContext): InferUnion<T>;
    protected cloneArgs(): unknown[];
}
export {};