Check If It Is a Good Array LeetCode solution in Python

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# Runtime: 527 ms (Top 22.03%) | Memory: 24.7 MB (Top 71.19%)
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class Solution:
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    def isGoodArray(self, nums: List[int]) -> bool:
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        def gcd(a, b):
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            while a:
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                a, b = b % a, a
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            return b
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        return reduce(gcd, nums) == 1