import { Opt } from "@effect-ts-app/core/Option";
import * as S from "../_schema.js";
import type { DefaultSchema } from "./withDefaults.js";
export declare const optionFromNullIdentifier: S.Annotation<{
    self: S.SchemaAny;
}>;
export declare function optionFromNull<ParserInput, ParsedShape, ConstructorInput, Encoded, Api>(self: S.Schema<ParserInput, ParsedShape, ConstructorInput, Encoded, Api>): DefaultSchema<ParserInput | null, Opt<ParsedShape>, Opt<ConstructorInput>, Encoded | null, Api>;
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