export declare class IxBuilder<I, O, A> {
    readonly spec: A;
    readonly _A: A | undefined;
    readonly _L: O | undefined;
    readonly _U: I | undefined;
    constructor(spec: A);
    run(): A;
    map<B>(f: (a: A) => B): IxBuilder<I, O, B>;
    ichain<Z, B>(f: (a: A) => IxBuilder<O, Z, B>): IxBuilder<I, Z, B>;
}
export declare const map: <I, O, A, B>(fa: IxBuilder<I, O, A>, f: (a: A) => B) => IxBuilder<I, O, B>;
export declare const iof: <I, A>(a: A) => IxBuilder<I, I, A>;
export declare const ichain: <I, O, Z, A, B>(fa: IxBuilder<I, O, A>, f: (a: A) => IxBuilder<O, Z, B>) => IxBuilder<I, Z, B>;
export declare const ichainCurry: <I, O, Z, A, B>(f: (a: A) => IxBuilder<O, Z, B>) => (fa: IxBuilder<I, O, A>) => IxBuilder<I, Z, B>;
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