Please solve the programming task below using a self-contained code snippet in a markdown code block.

You are given a string s, where every two consecutive vertical bars '|' are grouped into a pair. In other words, the 1st and 2nd '|' make a pair, the 3rd and 4th '|' make a pair, and so forth.
Return the number of '*' in s, excluding the '*' between each pair of '|'.
Note that each '|' will belong to exactly one pair.
 
Please complete the following python code precisely:
```python
class Solution:
    def countAsterisks(self, s: str) -> int:
```