Can Make Arithmetic Progression From Sequence LeetCode solution in Python

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class Solution:
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    def canMakeArithmeticProgression(self, arr: List[int]) -> bool:
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        arr.sort()
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        check = arr[0] - arr[1]
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        for i in range(len(arr) - 1):
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            if arr[i] - arr[i + 1] != check:
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                return False
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        return True