pipe(
ReadonlyArray.fromIterable(collection),
(x) => ReadonlyArray.flatten(x),
);
ReadonlyArray.flatten(ReadonlyArray.fromIterable(collection));
pipe(
ReadonlyArray.fromIterable(collection),
(x) => ReadonlyArray.flatten(x),
);
ReadonlyArray.flatten(ReadonlyArray.fromIterable(collection));