Stream.partition<S>(source: Source<S>): Task<{ values: Exclude<S, AnyFailure>[]; errors: Extract<S, AnyFailure>[]; },never>
StreamClass#partition as a static: Stream.partition(source, …) is
Stream.from(source).partition(…).
(await Stream.partition([1, 2])).values; // [1, 2]
Task<{ values: Exclude<S, AnyFailure>[]; errors: Extract<S, AnyFailure>[]; },never>