import json


def create_new_json(prefecture: str, d: dict) -> None:
    """
    Create a new json file for a new prefecture.
    Parameters
    --------
    prefecture: str
        The name of the prefecture in kanji.
    d: dict
        The dict (json) of the prefecture.
    """
    with open(f".\\json\\{prefecture}.json", mode="w", encoding="utf8") as f:
        json.dump(d, f, indent=2, ensure_ascii=False)
    return None