add lora finetune code

haoneng.lhn

2023-07-20 b8e2cab7ee61cb7762ca628f52bff7f6f32f1793

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beam_size: 5
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7