@effect-ts/system/Effect/optional.d.ts

Effect-TS is a zero dependency set of libraries to write highly productive, purely functional TypeScript at scale.

import * as O from "../Option/index.js";
import type { Effect } from "./effect.js";
/**
 * Converts an option on errors into an option on values.
 */
export declare function optional<R, E, A>(self: Effect<R, O.Option<E>, A>, __trace?: string): Effect<R, E, O.Option<A>>;
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