如何在python中返回多维字典的相关键和值？

def get_dict_keys_and_values(dictionary):
    keys = []
    values = []

    for key, value in dictionary.items():
        keys.append(key)

        if isinstance(value, dict):
            nested_keys, nested_values = get_dict_keys_and_values(value)
            keys.extend([f"{key}.{nested_key}" for nested_key in nested_keys])
            values.extend(nested_values)
        else:
            values.append(value)

    return keys, values

# 示例多维字典
example_dict = {
    "key1": "value1",
    "key2": {
        "nested_key1": "nested_value1",
        "nested_key2": {
            "nested_nested_key1": "nested_nested_value1"
        }
    }
}

result_keys, result_values = get_dict_keys_and_values(example_dict)
print(result_keys)
print(result_values)

['key1', 'key2', 'key2.nested_key1', 'key2.nested_key2', 'key2.nested_key2.nested_nested_key1']
['value1', 'nested_value1', 'nested_nested_value1']