如何编写一个泛型函数来序列化/反序列化映射结构中的任何记录？

def serialize_deserialize_map(data):
    if not data:
        return ""  # 空映射结构返回空字符串

    serialized_data = ""
    for key, value in data.items():
        serialized_data += f"{key}: {value}\n"  # 拼接键值对字符串，以换行符分隔

    return serialized_data.strip()  # 去除首尾空白字符

# 示例用法
map_data = {"name": "John", "age": 30, "city": "New York"}
serialized_data = serialize_deserialize_map(map_data)
print(serialized_data)  # 输出：name: John\nage: 30\ncity: New York

deserialized_data = serialize_deserialize_map(serialized_data)
print(deserialized_data)  # 输出：{"name": "John", "age": 30, "city": "New York"}