def append_separator(self, text='-'):

        # change offsets if headers are or aren't defined
        if not self.headers:
            index = self.height if self.height else 0
        else:
            index = (self.height + 1) if self.height else 1

        self.insert_separator(index, text)
Adds a :ref:`separator <separators>` to the :class:`Dataset`.
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/core.py/Dataset.append_separator