import type { Async } from "./model";
export declare const first_: <R, E, A, B>(pab: Async<R, E, A>, f: (e: E) => B) => Async<R, B, A>;
export declare const first: <E, B>(f: (e: E) => B) => <R, A>(pab: Async<R, E, A>) => Async<R, B, A>;
export declare const bimap_: <R, E, A, B, C>(pab: Async<R, E, A>, f: (e: E) => B, g: (a: A) => C) => Async<R, B, C>;
export declare const bimap: <E, A, B, C>(f: (e: E) => B, g: (a: A) => C) => <R>(pab: Async<R, E, A>) => Async<R, B, C>;
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