Leetcode 383. Ransom Note

class Solution:
    def canConstruct(self, ransomNote: str, magazine: str) -> bool:
        ransom = Counter(ransomNote)
        mag = Counter(magazine)
        for k, _ in ransom.items():
            if k in mag:
                if ransom[k] > mag[k]:
                    return False
            else:
                return False
        return True