import Monad from "../../specifications/Monad";
import { FNA1 } from "../../specifications/Function";
export default class IO<A> implements Monad<A> {
    private readonly action;
    constructor(action: () => A);
    map<B>(fn: (a: A) => B): IO<B>;
    ap<B>(other: IO<B>): A extends FNA1<B, infer C> ? IO<C> : never;
    static of<A>(value: A): IO<A>;
    chain<B>(fn: (action: A) => IO<B>): IO<B>;
    join(): IO<any>;
    run(): A;
    get(): () => A;
    inspect(): string;
}