def get_terms(self, use_metadata=False) -> List[str]:
        '''
        Returns
        -------
        np.array of unique terms
        '''
        if use_metadata:
            return self.get_metadata()
        return self._term_idx_store._i2val

        Returns
        -------
        np.array of unique terms
        
scattertext/TermDocMatrixWithoutCategories.py