def reload(self):
        res = self.api._req_file(self.fid)
        data = res['data'][0]
        self.name = data['file_name']
        self.sha = data['sha1']
        self.pickcode = data['pick_code']
Returns the stored fields for the given document number.
dataset/ETHPy150Open shichao-an/115wangpan/u115/api.py/File.reload--crossover with--dataset/ETHPy150Open dokipen/whoosh/src/whoosh/reading.py/IndexReader.stored_fields