human
What is a the Python code you requested given the following:
Solve in Python:
Given an array nums of positive integers. Your task is to select some subset of nums, multiply each element by an integer and add all these numbers. The array is said to be good if you can obtain a sum of 1 from the array by any possible subset and multiplicand.
Return True if the array is good otherwise return False.
 
Example 1:
Input: nums = [12,5,7,23]
Output: true
Explanation: Pick numbers 5 and 7.
5*3 + 7*(-2) = 1

Example 2:
Input: nums = [29,6,10]
Output: true
Explanation: Pick numbers 29, 6 and 10.
29*1 + 6*(-3) + 10*(-1) = 1

Example 3:
Input: nums = [3,6]
Output: false

 
Constraints:

1 <= nums.length <= 10^5
1 <= nums[i] <= 10^9
assistant
#Here is the Python code you requested.

class Solution:
    def isGoodArray(self, nums: List[int]) -> bool:
#         primeSet = set()
#         def isPrime(x):
#             if x < 2 or x in primeSet:
#                 return False
#             i = 2
#             limit = int(x**0.5)
#             while i < limit +1:
#                 if x%i == 0:
#                     return False
#                 limit = x//i
#                 i += 1
#             primeSet.add(x)
#             return True
        
#         numsLen = len(nums)
#         primeCounter = 0
#         for i in range(numsLen):
#             if nums[i] == 1:
#                 return True
#             if isPrime(nums[i]):
#                 primeCounter += 1
#                 if primeCounter == 2:
#                     return True
#             else:
#                 for j in range(i):
#                     if isPrime(abs(nums[j] - nums[i])):
#                         primeCounter += 1
#                         if primeCounter == 2:
#                             return True
#         return False
        g=nums[0]
        for i in nums:
            g=gcd(i,g)
        return g==1