Get a function definition/implementation hint similar to the one shown in pycharm.

[hongy...@gmail.com]

I've written the following python code snippet in pycharm:
```python
import numpy as np
from numpy import pi, sin

a = np.array([1], dtype=bool)
if np.in|vert(a) == ~a:
    print('ok')
```
When putting the point/cursor in the above code snippet at the position denoted by `|`, I would like to see information similar to that provided by `pycharm`, as shown in the following screenshots:

https://user-images.githubusercontent.com/11155854/137619512-674e0eda-7564-4e76-af86-04a194ebeb8e.png
https://user-images.githubusercontent.com/11155854/137619524-a0b584a3-1627-4612-ab1f-05ec1af67d55.png

But I wonder if there are any other python packages/tools that can help me achieve this goal?

Regards,
HZ