How to use the bbopt.examples.__init__._coconut function in bbopt

def _coconut_igetitem(iterable, index):
    if isinstance(iterable, (_coconut_reversed, _coconut_map, _coconut.zip, _coconut_enumerate, _coconut_count, _coconut.abc.Sequence)):
        return iterable[index]
    if not _coconut.isinstance(index, _coconut.slice):
        if index < 0:
            return _coconut.collections.deque(iterable, maxlen=-index)[0]
        return _coconut.next(_coconut.itertools.islice(iterable, index, index + 1))
    if index.start is not None and index.start < 0 and (index.stop is None or index.stop < 0) and index.step is None:
        queue = _coconut.collections.deque(iterable, maxlen=-index.start)
        if index.stop is not None:
            queue = _coconut.list(queue)[:index.stop - index.start]
        return queue
    if (index.start is not None and index.start < 0) or (index.stop is not None and index.stop < 0) or (index.step is not None and index.step < 0):
        return _coconut.list(iterable)[index]
    return _coconut.itertools.islice(iterable, index.start, index.stop, index.step)
class _coconut_base_compose(object):

def count(self, elem):
        """Count the number of times elem appears in the count."""
        if not self.step:
            return _coconut.float("inf") if elem == self.start else 0
        return int(elem in self)
    def index(self, elem):

def __iter__(self):
        iterator = _coconut.iter(self.iter)
        loop = True
        while loop:
            group = []
            for _ in _coconut.range(self.group_size):
                try:
                    group.append(_coconut.next(iterator))
                except _coconut.StopIteration:
                    loop = False
                    break
            if group:
                yield _coconut.tuple(group)
    def __len__(self):

def recursive_iterator_func(*args, **kwargs):
        key = (args, _coconut.frozenset(kwargs))
        use_backup = False
        try:
            hash(key)
        except _coconut.Exception:
            try:
                key = _coconut.pickle.dumps(key, -1)
            except _coconut.Exception:
                use_backup = True
        if use_backup:
            for i, (k, v) in _coconut.enumerate(backup_tee_store):
                if k == key:
                    to_tee, store_pos = v, i
                    break
            else:  # no break
                to_tee = func(*args, **kwargs)
                store_pos = None
            to_store, to_return = _coconut_tee(to_tee)
            if store_pos is None:
                backup_tee_store.append([key, to_store])
            else:
                backup_tee_store[store_pos][1] = to_store
        else:

def __new__(cls, iterable):
        if _coconut.isinstance(iterable, _coconut.range):
            return iterable[::-1]
        if not _coconut.hasattr(iterable, "__reversed__") or _coconut.isinstance(iterable, (_coconut.list, _coconut.tuple)):
            return _coconut.object.__new__(cls)
        return _coconut.reversed(iterable)
    def __init__(self, iterable):

def _coconut_igetitem(iterable, index):
    if isinstance(iterable, (_coconut_reversed, _coconut_map, _coconut.zip, _coconut_enumerate, _coconut_count, _coconut.abc.Sequence)):
        return iterable[index]
    if not _coconut.isinstance(index, _coconut.slice):
        if index < 0:
            return _coconut.collections.deque(iterable, maxlen=-index)[0]
        return _coconut.next(_coconut.itertools.islice(iterable, index, index + 1))
    if index.start is not None and index.start < 0 and (index.stop is None or index.stop < 0) and index.step is None:
        queue = _coconut.collections.deque(iterable, maxlen=-index.start)
        if index.stop is not None:
            queue = _coconut.list(queue)[:index.stop - index.start]
        return queue
    if (index.start is not None and index.start < 0) or (index.stop is not None and index.stop < 0) or (index.step is not None and index.step < 0):
        return _coconut.list(iterable)[index]
    return _coconut.itertools.islice(iterable, index.start, index.stop, index.step)
class _coconut_base_compose(object):

def __reversed__(self):
        return self.__class__(self.func, _coconut_reversed(self.iter))
    def __repr__(self):
        return "filter(%r, %r)" % (self.func, self.iter)
    def __reduce__(self):
        return (self.__class__, (self.func, self.iter))
    def __reduce_ex__(self, _):
        return self.__reduce__()
    def __copy__(self):
        return self.__class__(self.func, _coconut.copy.copy(self.iter))
    def __fmap__(self, func):
        return _coconut_map(func, self)
class zip(_coconut.zip):
    __slots__ = ("iters",)
    if hasattr(_coconut.zip, "__doc__"):
        __doc__ = _coconut.zip.__doc__
    def __new__(cls, *iterables):
        new_zip = _coconut.zip.__new__(cls, *iterables)
        new_zip.iters = iterables
        return new_zip
    def __getitem__(self, index):
        if _coconut.isinstance(index, _coconut.slice):
            return self.__class__(*(_coconut_igetitem(i, index) for i in self.iters))
        return _coconut.tuple(_coconut_igetitem(i, index) for i in self.iters)
    def __reversed__(self):
        return self.__class__(*(_coconut_reversed(i) for i in self.iters))
    def __len__(self):
        return _coconut.min(_coconut.len(i) for i in self.iters)
    def __repr__(self):
        return "zip(%s)" % (", ".join((_coconut.repr(i) for i in self.iters)),)
    def __reduce__(self):
        return (self.__class__, self.iters)