###### Is the your_numpy_array an NumPy array ? It can be checked with `type(your_numpy_array)` that should be equal to `numpy.ndarray`. 

##### Run all the cells of the notebook or `python main.py`

###### Are the types printed are as follows ?

```
<class 'int'>
<class 'float'>
<class 'str'>
<class 'dict'>
<class 'list'>
<class 'tuple'>
<class 'set'>
<class 'bool'>
```