Function required

packages/effect/src/SchemaGetter.ts:387–389

(annotations?: Schema.Annotations.Key<T>)

 * @since 4.0.0
 */
export function required<T, E extends T = T>(annotations?: Schema.Annotations.Key<T>): Getter<T, E> {
  return onNone(() => Effect.fail(new SchemaIssue.MissingKey(annotations)))
}

/**
 * Creates a getter that handles present values (`Option.Some`), passing `None` through.