ユーザーのアバターを削除

curl -i -X DELETE -L "https://api.box.net/2.0/users/12345/avatar" \
     -H "Authorization: Bearer <ACCESS_TOKEN>"

bool isDeleted = await client.UsersManager.DeleteUserAvatarAsync(userId);

String userID = "33333";
BoxUser user = new BoxUser(api, userID);
user.deleteAvatar();

client.user('33333').delete_avatar()

client.users.deleteAvatar('22222', () => {
    console.log('User avatar deleted!'); 
});

client.users.deleteAvatar(userId: "33333") { result in
    guard case .success = result else {
        print("Error deleting avatar")
        return
    }

    print("Avatar successfully deleted")
}