StnSplit().split()方法在dep等任务中报错

以下代码运行报错：TypeError: argument 'stn_length': 'float' object cannot be interpreted as an integer
```
raw = open(file_name, encoding = 'utf-8').read()            
sents = StnSplit().split(raw)
for sent in sents:
    result = ltp.pipeline([sent], tasks = ["cws", "pos", "dep"])
```

但是，如果tasks中只保留“cws”和"pos"，则运行正常。