Create empty copy of the current table, with copies of all
           index definitions.

def copy_template(self, name=None):
        """Create empty copy of the current table, with copies of all
           index definitions.
        """
        ret = Table(self.table_name)
        ret._indexes.update(dict((k, v.copy_template()) for k, v in self._indexes.items()))
        ret(name)
        return ret