# Copyright (c) 2017-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the license found in the LICENSE file in
# the root directory of this source tree. An additional grant of patent rights
# can be found in the PATENTS file in the same directory.

from . import FairseqDataset


class NumSamplesDataset(FairseqDataset):

    def __getitem__(self, index):
        return 1

    def __len__(self):
        return 0

    def collater(self, samples):
        return sum(samples)
