import json


def json_encode(data, indent=None, unicode=True):
    return json.dumps(data, indent=indent, ensure_ascii=unicode)


def json_decode(data):
    return json.loads(data)


if __name__ == '__main__':
    # Example.
    data_encode = {"id": 101, "name": "小明", "friends": ["小红", "小花"]}
    data_decode = """
    {"id": 101, "name": "\u5c0f\u660e", "friends": ["\u5c0f\u7ea2", "\u5c0f\u82b1"]}
    """
    print(json_encode(data_encode))
    print(json_encode(data_encode, indent=4))
    print(json_encode(data_encode, indent=4, unicode=False))
    print(json_decode(data_decode))