'Populate the new table definition keywords from the header.'

def _populate_table_keywords(self):

    for (idx, column) in enumerate(self.columns):
        for (keyword, attr) in six.iteritems(KEYWORD_TO_ATTRIBUTE):
            val = getattr(column, attr)
            if (val is not None):
                keyword = (keyword + str((idx + 1)))
                self._header[keyword] = val
