dictionary_one = {"a": 1, "b": 2, "c": 3}
dictionary_two = {"c": 3, "d": 4}

merged1 = {**dictionary_one, **dictionary_two}
print(merged) # {'a': 1, 'b': 2, 'c': 3, 'd': 4}

merged2 = dictionary_one | dictionary_two
print(merged2)

これの "merged1="部分と"merged2 ="部分ってやってること同じという認識でいいのかな？