import json


def write_json(guild: int, param_name: str, param: str or int):
    with open('prefix.json', 'r', 'utf-8') as _f:
        try:
            _json = json.load(_f)
        except json.decoder.JSONDecodeError:
            _json = {}
    _json.update({f'{guild}': {}})
    print(_json)
    _guild = _json[f'{guild}']
    print(_guild)
    _guild.update({f'{param_name}': f'{param}'})
    print(_json)

write_json(929446191270330452, 'test1', '34')