leetcode 2215. Find the Difference of Two Arrays

pythoclass Solution:
    def findDifference(self, nums1: List[int], nums2: List[int]) -> List[List[int]]:
        ans1=[]
        ans2=[]
        ans_list=[]
        for i in nums1 :
            if i not in nums2:
                ans1.append(i)
        for i in nums2 :
            if i not in nums1:
                ans2.append(i)
        ans_list.append(list(set(ans1)))
        ans_list.append(list(set(ans2)))
        return ans_list