import { Some, None } from "@fp-ts/data/Option";
import { Opt } from "@effect-ts-app/core/Option";
import { NonEmptyReadonlyArray } from "@fp-ts/data/ReadonlyArray";
import type { Misc, Union } from "ts-toolbelt";
import type * as SET from "./Set.js";
type OptOf<A> = Union.Exclude<A extends Some<infer X> ? X | null : A, None>;
export type TransformRoot<O> = O extends Opt<any> ? Transform<OptOf<O>> : Transform<O>;
export type Transform<O> = O extends Misc.BuiltIn | Misc.Primitive ? O : {
    [K in keyof O]: OptOf<O[K]> extends infer X ? X extends (infer Y)[] ? OptOf<Transform<Y>>[] : X extends NonEmptyReadonlyArray<infer Y> ? NonEmptyReadonlyArray<OptOf<Transform<Y>>> : X extends SET.Set<infer Y> ? SET.Set<OptOf<Transform<Y>>> : X extends readonly (infer Y)[] ? readonly OptOf<Transform<Y>>[] : Transform<X> : never;
};
export declare const encodeOptsAsNullable: <T>(root: T) => TransformRoot<T>;
export {};
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