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option-t

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A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

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import { type Result } from '../../plain_result/core/result.js'; import { type Nullable } from '../core/nullable.js'; /** * Return `Err<void>` if _input_ is `null`. * Otherwise, return `Ok<T>` directly. */ export declare function toResultOkFromNullable<T>(input: Nullable<T>): Result<T, void>; /** * Return `Ok<void>` if _input_ is `null`. * Otherwise, return `Err<E>` directly. */ export declare function toResultErrFromNullable<E>(input: Nullable<E>): Result<void, E>;