def METHOD_NAME(self, dataset: CV4AKenyaCropType) -> None:
    train_field_ids, test_field_ids = dataset.get_splits()
    assert isinstance(train_field_ids, list)
    assert isinstance(test_field_ids, list)
    assert len(train_field_ids) == 18
    assert len(test_field_ids) == 9
    assert 336 in train_field_ids
    assert 336 not in test_field_ids
    assert 4793 in test_field_ids
    assert 4793 not in train_field_ids