export CUDA_VISIBLE_DEVICES=3

./conformer_ctc3/export.py \
  --exp-dir ./conformer_ctc3/exp \
  --lang-dir data/lang_bpe_500 \
  --causal-convolution 0 \
  --streaming-model 0 \
  --jit-trace 1 \
  --epoch 25 \
  --avg 7