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

You are given an integer array deck where deck[i] represents the number written on the ith card.
Partition the cards into one or more groups such that:

Each group has exactly x cards where x > 1, and
All the cards in one group have the same integer written on them.

Return true if such partition is possible, or false otherwise.
 
Please complete the following python code precisely:
```python
class Solution:
    def hasGroupsSizeX(self, deck: List[int]) -> bool:
```