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

You are given an integer array nums of 2 * n integers. You need to partition nums into two arrays of length n to minimize the absolute difference of the sums of the arrays. To partition nums, put each element of nums into one of the two arrays.
Return the minimum possible absolute difference.
 
Please complete the following python code precisely:
```python
class Solution:
    def minimumDifference(self, nums: List[int]) -> int:
```