Write a function that sorts an array of integers in ascending order. You may use any comparison-based sorting approach, but the function must return the sorted array.
Formal Specification
Input: A list of integers nums
Output: The same list of integers arranged in nondecreasing order
Function behavior: You may sort the array in place or return a new sorted list, but the returned value must be the sorted array
Constraints
0 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9
The array may contain duplicate values
The function must handle an empty array
Function Signature
defsort_array(nums):
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