import { ErrImpl } from "./Err.class.ts";
import type { Result } from "../types.ts";
export declare class OkImpl<T> {
    readonly ok: true;
    readonly err: false;
    readonly val: T;
    constructor(val: T);
    unwrap(): T;
    unwrapOr(_val: unknown): T;
    unwrapOrElse(_mapper: unknown): T;
    safeUnwrap(): T;
    map<T2>(mapper: (val: T) => T2): OkImpl<T2>;
    mapOr<U>(_default_: U, mapper: (val: T) => U): U;
    mapOrElse<U>(_default_: (error: unknown) => U, mapper: (val: T) => U): U;
    mapErr(_mapper: unknown): OkImpl<T>;
    andThen<T2>(mapper: (val: T) => OkImpl<T2>): OkImpl<T2>;
    andThen<E2>(mapper: (val: T) => ErrImpl<E2>): Result<T, E2>;
    andThen<T2, E2>(mapper: (val: T) => Result<T2, E2>): Result<T2, E2>;
    orElse(_mapper: unknown): OkImpl<T>;
    isOk(): true;
    isErr(): false;
    match<A, B>(okMapper: (val: T) => A, _errMapper: (err: unknown) => B): A | B;
    andTee(mapper: (val: T) => unknown): OkImpl<T>;
    orTee(_mapper: unknown): OkImpl<T>;
    andThrough<E2>(mapper: (val: T) => Result<unknown, E2>): Result<T, E2>;
}
export declare function Ok<T>(value: T): OkImpl<T>;
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