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

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 __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 __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)