[Python3] 1 line solution using Counter || 33ms
python3 []\nclass Solution:\n    def isPossibleToSplit(self, nums: List[int]) -> bool:\n        return all(val <= 2 for val in Counter(nums).values())\n
```python3 []\nclass Solution:\n    def isPossibleToSplit(self, nums: List[int]) -> bool:\n        return all(val <= 2 for val in Counter(nums).values())\n```
['Python', 'Python3']