def METHOD_NAME(iters, optimizer, converter, devices, accum_grad=1):
    """Get custom_parallel_updater of the model."""
    from espnet.nets.chainer_backend.rnn.training import CustomParallelUpdater
    return CustomParallelUpdater(
        iters,
        optimizer,
        converter=converter,
        devices=devices,
        accum_grad=accum_grad,
    )