When using F String with numpy.float32 variable, the output is wrong!

Example code:

```python
import numpy as np

floatNumber = 0.00123
print(f"num:{floatNumber}")

npFloatNumber = np.float32(0.00123)
print(f"num:{npFloatNumber}")
```

The output is:

```
num:0.00123
num:0.001230000052601099
```

As we can see, the value of np.float32 is wrong!