✅ Python | Solution
\n# Code\n\nclass Solution:\n    def getConcatenation(self, nums: List[int]) -> List[int]:\n        return nums * 2\n
\n# Code\n```\nclass Solution:\n    def getConcatenation(self, nums: List[int]) -> List[int]:\n        return nums * 2\n```
['Python3']