How to use the certbot-nginx.certbot_nginx._internal.nginxparser.UnspacedList function in certbot-nginx

def is_dirty(self):
        """Recurse through the parse tree to figure out if any sublists are dirty"""
        if self.dirty:
            return True
        return any((isinstance(x, UnspacedList) and x.is_dirty() for x in self))

def __init__(self, list_source):
        # ensure our argument is not a generator, and duplicate any sublists
        self.spaced = copy.deepcopy(list(list_source))
        self.dirty = False

        # Turn self into a version of the source list that has spaces removed
        # and all sub-lists also UnspacedList()ed
        list.__init__(self, list_source)
        for i, entry in reversed(list(enumerate(self))):
            if isinstance(entry, list):
                sublist = UnspacedList(entry)
                list.__setitem__(self, i, sublist)
                self.spaced[i] = sublist.spaced
            elif spacey(entry):
                # don't delete comments
                if "#" not in self[:i]:
                    list.__delitem__(self, i)

def _coerce(self, inbound):
        """
        Coerce some inbound object to be appropriately usable in this object

        :param inbound: string or None or list or UnspacedList
        :returns: (coerced UnspacedList or string or None, spaced equivalent)
        :rtype: tuple

        """
        if not isinstance(inbound, list):                      # str or None
            return inbound, inbound
        else:
            if not hasattr(inbound, "spaced"):
                inbound = UnspacedList(inbound)
            return inbound, inbound.spaced

def __deepcopy__(self, memo):
        new_spaced = copy.deepcopy(self.spaced, memo=memo)
        l = UnspacedList(new_spaced)
        l.dirty = self.dirty
        return l