A question to the most pythonists! Would it be consider a bad practice to put this as:
```python
elif (tai and isinstance( time_string, int)) or (tai and isinstance (time_string, float)):
```
? This makes it, at least to me, easier to read.

But, in any case, could we not just do this as:
```python
elif tai and (isinstance( time_string, int)) or isinstance (time_string, float)):
```
I believe in this case the `()` are essential, otherwise we could get `True` by just having `time_string` as `float`.