    def save(self, f):
        """Stores dictionary into a text file"""
        ex_keys, ex_vals = self._get_meta()
        self._save(
            f,
            zip(
                ex_keys + self.symbols[self.nspecial :],
                ex_vals + self.count[self.nspecial :],
            ),
        )
Stores dictionary into a text file
fairseq/data/dictionary.py