Issue with Schema and Data Integration

import * as S from '@effect/schema/Schema';
import * as F from '@effect/data/Function';
import * as E from '@effect/data/Either';

F.pipe([['a', 'b']] as unknown,
    S.parseEither(S.array(S.tuple(S.string, S.string))),
    E.map(R.fromEntries)
);