How to use the javaproperties.writing.to_comment function in javaproperties

def timestamp(self, value):
        if value is not None and value is not False:
            if not isinstance(value, six.string_types):
                value = java_timestamp(value)
            comments = [
                Comment(c) for c in ascii_splitlines(to_comment(value) + '\n')
            ]
        else:
            comments = []
        for n in self._lines.iternodes():
            if isinstance(n.value, Comment) and n.value.is_timestamp():
                if comments:
                    n.value = comments[0]
                    for c in comments[1:]:
                        n = n.insert_after(c)
                else:
                    n.unlink()
                return
            elif isinstance(n.value, KeyValue):
                for c in comments:
                    n.insert_before(c)
                return

def header_comment(self, value):
        if value is None:
            comments = []
        else:
            comments = [
                Comment(c) for c in ascii_splitlines(to_comment(value) + '\n')
            ]
        while self._lines.start is not None:
            n = self._lines.start
            if isinstance(n.value, KeyValue) or \
                    (isinstance(n.value, Comment) and n.value.is_timestamp()):
                break
            else:
                n.unlink()
        if self._lines.start is None:
            for c in comments:
                self._lines.append(c)
        else:
            n = self._lines.start
            for c in comments:
                n.insert_before(c)