Interface UndefinedOr

packages/effect/src/Schema.ts:5007–5009

 * @since 3.10.0
 */
export interface UndefinedOr<S extends Constraint> extends Union<readonly [S, Undefined]> {
  readonly "Rebuild": UndefinedOr<S>
}

interface UndefinedOrLambda extends Lambda {
  <S extends Constraint>(self: S): UndefinedOr<S>