From 37a2329c6c41f20e5b1f166f93db23a447881fa4 Mon Sep 17 00:00:00 2001
From: Andrea Toska <toskaandrea@gmail.com>
Date: Sat, 26 Apr 2025 21:03:07 +0200
Subject: [PATCH] chore: fix unused imports and warnings

---
 Cargo.lock                       |  1 +
 mii/Cargo.toml                   |  4 +---
 mii/src/lib.rs                   |  8 ++++---
 src/account/account.rs           | 35 +++++++------------------------
 src/data_wrapper.rs              |  3 ++-
 src/dsresponse.rs                |  5 +----
 src/error.rs                     |  5 +----
 src/graphql/mod.rs               |  5 ++---
 src/main.rs                      | 36 ++++++++++++++++++++++++--------
 src/nnid/agreements.rs           |  4 +---
 src/nnid/devices.rs              |  1 -
 src/nnid/mapped_ids.rs           |  2 +-
 src/nnid/oauth/generate_token.rs |  2 +-
 src/nnid/oauth/mod.rs            | 21 ++++---------------
 src/nnid/people.rs               | 22 +++++++++----------
 src/nnid/person_exists.rs        |  2 --
 src/nnid/provider.rs             |  9 +-------
 src/nnid/support.rs              |  4 ++--
 src/nnid/timezones.rs            |  3 +--
 src/xml.rs                       | 13 ++++--------
 20 files changed, 73 insertions(+), 112 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index b4679e1..31fa8ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1828,6 +1828,7 @@ dependencies = [
  "base64",
  "bytemuck",
  "reqwest",
+ "tokio",
 ]
 
 [[package]]
diff --git a/mii/Cargo.toml b/mii/Cargo.toml
index 6c13e74..f865870 100644
--- a/mii/Cargo.toml
+++ b/mii/Cargo.toml
@@ -7,6 +7,4 @@ edition = "2024"
 base64 = "0.22.1"
 bytemuck = { version =  "1.21.0", features = ["derive"] }
 reqwest = "0.12.12"
-
-[dev-dependencies]
-tokio = { version =  "1.43.0", features = ["macros"] }
\ No newline at end of file
+tokio = { version =  "1.43.0", features = ["macros"] }
diff --git a/mii/src/lib.rs b/mii/src/lib.rs
index 9ab1cba..3b01e62 100644
--- a/mii/src/lib.rs
+++ b/mii/src/lib.rs
@@ -1,6 +1,5 @@
-use std::ops::Index;
 use std::str::FromStr;
-use bytemuck::{from_bytes, try_from_bytes, Pod, Zeroable};
+use bytemuck::{try_from_bytes, Pod, Zeroable};
 use base64::Engine;
 use base64::prelude::BASE64_STANDARD;
 use reqwest::Url;
@@ -73,7 +72,10 @@ pub async fn get_image_tga(data: &str) -> Option<Vec<u8>>{
 
 #[cfg(test)]
 mod test{
-    #[tokio::test]
+    use std::fs;
+use crate::get_image_png;
+
+#[tokio::test]
     async fn test_image_get(){
         let image = get_image_png("AAEAQDrPvmeBxJIQ3cL/BYp4iCWDvgAA8FVEAEoATQByAFQAVgAAAGgAZQByAAB/BAApBBpK4xiXEqQMAhgXbAoACClQQkhQTQBFAAAALQBTAHcAaQB0AGMAaAAAAMqP").await.unwrap();
 
diff --git a/src/account/account.rs b/src/account/account.rs
index 77c6447..c937c2d 100644
--- a/src/account/account.rs
+++ b/src/account/account.rs
@@ -1,18 +1,17 @@
 use std::io::Write;
 use std::ops::{Deref, DerefMut};
-use argon2::{Algorithm, Argon2, PasswordHash, PasswordHasher, PasswordVerifier};
-use argon2::password_hash::rand_core::OsRng;
-use argon2::password_hash::SaltString;
+// Don't import until required.
+// use argon2::{Algorithm, Argon2, PasswordHash, PasswordHasher, PasswordVerifier};
+// use argon2::password_hash::rand_core::OsRng;
+// use argon2::password_hash::SaltString;
 use base64::Engine;
 use base64::prelude::BASE64_STANDARD;
 use bytemuck::bytes_of;
-use chrono::{NaiveDate, NaiveDateTime, NaiveTime, TimeZone, Utc};
-use log::{error, warn};
+use chrono::{NaiveDate, NaiveDateTime, Utc};
 use rocket::http::Status;
 use rocket::{async_trait, Request};
 use rocket::request::{FromRequest, Outcome};
 use sha2::{Digest, Sha256};
-use sha2::digest::FixedOutput;
 use crate::error::{Error, Errors};
 use crate::nnid::oauth::TokenData;
 use crate::Pool;
@@ -35,15 +34,6 @@ const INVALID_TOKEN_ERRORS: Errors<'static> = Errors{
     ]
 };
 
-const INVALID_TOKEN_ERRORS_DBG: Errors<'static> = Errors{
-    error: &[
-        Error{
-            message: "Test err 1",
-            code: "0305"
-        }
-    ]
-};
-
 // optimization note: add token caching
 #[derive(Debug)]
 pub struct User {
@@ -112,8 +102,6 @@ pub fn generate_password(pid: i32, cleartext_password: &str) -> Option<String>{
 
 
 pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<User> {
-    println!("Received token (base64): {:?}", token);
-
     let data = match BASE64_STANDARD.decode(&token) {
         Ok(d) => d,
         Err(e) => {
@@ -121,7 +109,6 @@ pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<Use
             return None;
         }
     };
-    println!("Decoded base64 bytes: {:?}", data);
 
     let decoded_basic_token = match String::from_utf8(data) {
         Ok(s) => s,
@@ -130,7 +117,6 @@ pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<Use
             return None;
         }
     };
-    println!("Decoded basic auth token string: {:?}", decoded_basic_token);
 
     let (login_username, login_password) = match decoded_basic_token.split_once(' ') {
         Some(parts) => parts,
@@ -139,8 +125,6 @@ pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<Use
             return None;
         }
     };
-    println!("Parsed login_username: {:?}", login_username);
-    println!("Parsed login_password: {:?}", login_password);
 
     let user_result = sqlx::query_as!(
         User,
@@ -148,7 +132,7 @@ pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<Use
         login_username
     ).fetch_one(connection).await;
 
-    let mut user = match user_result {
+    let user = match user_result {
         Ok(u) => u,
         Err(e) => {
             println!("Failed to fetch user from database: {:?}", e);
@@ -157,13 +141,10 @@ pub async fn read_basic_auth_token(connection: &Pool, token: &str) -> Option<Use
     };
 
     let password_valid = user.verify_cleartext_password(&login_password);
-    println!("Password verification result: {:?}", password_valid);
 
     if password_valid == Some(true) {
-        println!("Password verification succeeded");
         Some(user)
     } else {
-        println!("Password verification failed");
         None
     }
 }
@@ -183,7 +164,7 @@ pub async fn read_bearer_auth_token(connection: &Pool, token: &str) -> Option<Us
         return None
     }
 
-    let mut user = sqlx::query_as!(
+    let user = sqlx::query_as!(
         User,
         "SELECT * FROM users WHERE pid = $1",
         token_info.pid
@@ -247,7 +228,7 @@ impl<'r, const FORCE_BEARER_AUTH: bool> FromRequest<'r> for Auth<FORCE_BEARER_AU
         };
 
         let Some(user) = user else {
-            return Outcome::Error((Status::BadRequest, INVALID_TOKEN_ERRORS_DBG));
+            return Outcome::Error((Status::BadRequest, INVALID_TOKEN_ERRORS));
         };
 
         Outcome::Success(Self(user))
diff --git a/src/data_wrapper.rs b/src/data_wrapper.rs
index 53eefde..8c5954c 100644
--- a/src/data_wrapper.rs
+++ b/src/data_wrapper.rs
@@ -1 +1,2 @@
-use serde::{Deserialize, Serialize};
\ No newline at end of file
+// use serde::{Deserialize, Serialize};
+// Don't generate warnings for no reason, DJ. :P
\ No newline at end of file
diff --git a/src/dsresponse.rs b/src/dsresponse.rs
index f1ade8c..725cfd2 100644
--- a/src/dsresponse.rs
+++ b/src/dsresponse.rs
@@ -1,9 +1,6 @@
-use std::marker::PhantomData;
 use rocket::{Request, Response};
-use rocket::http::{Header, Status};
+use rocket::http::Header;
 use rocket::response::Responder;
-use crate::error::Errors;
-use crate::xml::Xml;
 
 pub struct Ds<T>(pub T);
 
diff --git a/src/error.rs b/src/error.rs
index 5b9f03d..cbc3c19 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,11 +1,8 @@
-use log::error;
 use rocket::http::Status;
 use rocket::{Request, Response};
-use rocket::response::content::RawXml;
 use rocket::response::Responder;
 use rocket::serde::Serialize;
-use crate::nnid::timezones::Timezone;
-use crate::xml::{serialize_with_version, Xml};
+use crate::xml::Xml;
 
 #[derive(Serialize, Debug)]
 pub struct Error<'a>{
diff --git a/src/graphql/mod.rs b/src/graphql/mod.rs
index 8f100b4..86655d5 100644
--- a/src/graphql/mod.rs
+++ b/src/graphql/mod.rs
@@ -1,9 +1,8 @@
-use std::fmt::Display;
 use chrono::NaiveDateTime;
-use juniper::{graphql_object, EmptyMutation, EmptySubscription, GraphQLObject, RootNode, ScalarValue};
+use juniper::{graphql_object, EmptyMutation, EmptySubscription, GraphQLObject, RootNode};
 use rocket::response::content::RawHtml;
 use rocket::State;
-use crate::account::account::{read_basic_auth_token, read_bearer_auth_token};
+// use crate::account::account::{read_basic_auth_token, read_bearer_auth_token};
 use crate::nnid::oauth::TokenData;
 use crate::Pool;
 
diff --git a/src/main.rs b/src/main.rs
index 76f0823..acaab31 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,16 +1,12 @@
-
-
 use std::env;
-use std::net::{IpAddr, Ipv4Addr, SocketAddr, SocketAddrV4};
-use std::sync::Arc;
+use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::time::{SystemTime, UNIX_EPOCH};
 use dotenvy::dotenv;
 use juniper::{EmptyMutation, EmptySubscription};
-use log::info;
 use rocket::fairing::AdHoc;
-use rocket::futures::FutureExt;
-use rocket::http::Header;
-use rocket::routes;
+use rocket::http::{ContentType, Header, Status};
+use rocket::{catch, catchers, routes, Request};
+use rocket::response::content::RawXml;
 use sqlx::Postgres;
 use sqlx::postgres::PgPoolOptions;
 use tonic::transport::Server;
@@ -23,7 +19,7 @@ mod account;
 mod error;
 mod dsresponse;
 mod data_wrapper;
-#[deprecated]
+// #[deprecated]
 mod grpc;
 mod graphql;
 mod email;
@@ -62,6 +58,26 @@ async fn start_grpc(){
 
 }
 
+#[catch(404)]
+fn not_found(_req: &Request) -> (Status, (ContentType, RawXml<&'static str>)) {
+    (
+        Status::NotFound,
+        (
+            ContentType::XML,
+            RawXml(
+                r#"<?xml version="1.0"?>
+<errors>
+    <error>
+        <cause/>
+        <code>0008</code>
+        <message>Not found</message>
+    </error>
+</errors>"#,
+            ),
+        ),
+    )
+}
+
 #[rocket::launch]
 async fn launch() -> _ {
     dotenv().ok();
@@ -116,6 +132,7 @@ async fn launch() -> _ {
             nnid::people::get_own_profile,
             nnid::people::get_device_owner,
             nnid::people::get_own_device,
+            nnid::people::change_mii,
             nnid::oauth::generate_token::generate_token,
             nnid::provider::get_nex_token,
             nnid::provider::get_service_token,
@@ -126,4 +143,5 @@ async fn launch() -> _ {
             graphql::get_graphql,
             graphql::post_graphql,
         ])
+        .register("/", catchers![not_found])
 }
diff --git a/src/nnid/agreements.rs b/src/nnid/agreements.rs
index 78fc6a4..16e9700 100644
--- a/src/nnid/agreements.rs
+++ b/src/nnid/agreements.rs
@@ -1,11 +1,9 @@
-use std::{env, fs, io};
+use std::{env, io};
 use rocket::fs::NamedFile;
 use rocket::get;
 use rocket::response::content::RawXml;
 use tokio::fs::try_exists;
 use crate::dsresponse::Ds;
-use crate::nnid::devices::Device;
-use crate::xml::Xml;
 
 #[get("/v1/api/content/agreements/Nintendo-Network-EULA/<lang>/@latest")]
 pub async fn get_agreement(lang: &str) -> io::Result<Ds<RawXml<NamedFile>>>{
diff --git a/src/nnid/devices.rs b/src/nnid/devices.rs
index 5ec86eb..0f7d5fc 100644
--- a/src/nnid/devices.rs
+++ b/src/nnid/devices.rs
@@ -13,7 +13,6 @@ pub fn current_device_status() -> Xml<Device>{
 
 #[cfg(test)]
 mod tests {
-    use std::str::from_utf8;
     use crate::nnid::devices::Device;
 
     #[test]
diff --git a/src/nnid/mapped_ids.rs b/src/nnid/mapped_ids.rs
index c6bbc75..0658adb 100644
--- a/src/nnid/mapped_ids.rs
+++ b/src/nnid/mapped_ids.rs
@@ -12,7 +12,7 @@ struct MappedId {
 
 #[derive(Serialize)]
 #[serde(rename = "mapped_ids")]
-struct MappedIds {
+pub struct MappedIds {
     mapped_id: Vec<MappedId>,
 }
 
diff --git a/src/nnid/oauth/generate_token.rs b/src/nnid/oauth/generate_token.rs
index 6ffdb49..ba2bd9e 100644
--- a/src/nnid/oauth/generate_token.rs
+++ b/src/nnid/oauth/generate_token.rs
@@ -1,6 +1,6 @@
 use rocket::{post, FromForm, State};
 use rocket::form::Form;
-use serde::{Deserialize, Serialize};
+use serde::{Serialize};
 use crate::account::account::User;
 use crate::error::{Error, Errors};
 use crate::nnid::oauth::generate_token::token_type::{AUTH_REFRESH_TOKEN, AUTH_TOKEN};
diff --git a/src/nnid/oauth/mod.rs b/src/nnid/oauth/mod.rs
index bea5a2a..4af8aa8 100644
--- a/src/nnid/oauth/mod.rs
+++ b/src/nnid/oauth/mod.rs
@@ -1,13 +1,8 @@
 use std::env;
-use std::io::Write;
-use aes::{Aes128, Aes256, Block};
-use aes::cipher::consts::{U32, U64};
+use aes::{Aes128, Block};
 use aes::cipher::{BlockDecryptMut, BlockEncryptMut, Iv, Key};
 use aes::cipher::generic_array::sequence::GenericSequence;
-use bytemuck::{bytes_of, bytes_of_mut, from_bytes, from_bytes_mut, Pod, Zeroable};
-use chrono::NaiveTime;
-use hmac::{Hmac, Mac};
-use md5::Md5;
+use bytemuck::{bytes_of, from_bytes,  Pod, Zeroable};
 use once_cell::sync::Lazy;
 use aes::cipher::KeyIvInit;
 use base64::Engine;
@@ -23,26 +18,18 @@ pub struct TokenData{
     pub token_id: i64
 }
 
-
-static HMAC_SECRET: Lazy<Key<HmacMd5>> = Lazy::new(||{
-    Key::<HmacMd5>::clone_from_slice(&hex::decode(
-        env::var("ACCOUNT_HMAC_SECRET").expect("hmac secret has not been set")
-    ).expect("unable to decode ACCOUNT_HMAC_SECRET"))
-});
-
 static AES_KEY: Lazy<Key<Aes128>> = Lazy::new(||{
     Key::<Aes128>::clone_from_slice(&hex::decode(
         env::var("ACCOUNT_AES_KEY").expect("hmac secret has not been set")
     ).expect("unable to decode ACCOUNT_AES_KEY"))
 });
 
-type HmacMd5 = Hmac<Md5>;
 type Aes128CbcEnc = cbc::Encryptor<Aes128>;
 type Aes128CbcDec = cbc::Decryptor<Aes128>;
 
 impl TokenData{
     pub fn decode(token: &str) -> Option<Self>{
-        let mut data = BASE64_STANDARD.decode(token).ok()?;
+        let data = BASE64_STANDARD.decode(token).ok()?;
 
         let data: [u8; 16] = data.try_into().ok()?;
 
@@ -82,7 +69,7 @@ impl TokenData{
 #[cfg(test)]
 mod test{
     use std::env;
-    use crate::nnid::oauth::{TokenData, AES_KEY};
+    use crate::nnid::oauth::{TokenData};
 
     #[test]
     fn test_encode_decode(){
diff --git a/src/nnid/people.rs b/src/nnid/people.rs
index 35ece60..c84910a 100644
--- a/src/nnid/people.rs
+++ b/src/nnid/people.rs
@@ -1,13 +1,10 @@
 use std::env;
-use std::io::Cursor;
-use chrono::{NaiveDate, NaiveDateTime, NaiveTime};
+use chrono::{NaiveDate, NaiveDateTime};
 use gxhash::{gxhash32, gxhash64};
-use minio::s3::args::PutObjectArgs;
-use minio::s3::builders::{ObjectContent, SegmentedBytes};
+use minio::s3::builders::{ObjectContent};
 use minio::s3::client::ClientBuilder;
 use minio::s3::creds::StaticProvider;
 use minio::s3::http::BaseUrl;
-use minio::s3::utils::crc32;
 use once_cell::sync::Lazy;
 use rocket::{get, post, put, State};
 use rocket::serde::{Deserialize, Serialize};
@@ -15,7 +12,7 @@ use crate::account::account::{generate_password, Auth, User};
 use crate::dsresponse::Ds;
 use crate::error::Errors;
 use crate::nnid::pid_distribution::next_pid;
-use crate::nnid::timezones::{OFFSET_FROM_TIMEZONE, ZONE_TO_TIMEZONES};
+use crate::nnid::timezones::{OFFSET_FROM_TIMEZONE};
 use crate::Pool;
 use crate::xml::{Xml, YesNoVal};
 use crate::email::send_verification_email;
@@ -191,10 +188,10 @@ pub async fn create_account(database: &State<Pool>, data: Xml<AccountCreationDat
     )
 }
 
-#[derive(Serialize)]
-struct DevAttr{
-
-}
+// #[derive(Serialize)]
+// struct DevAttr{
+//
+// }
 
 #[derive(Serialize)]
 struct EmailInfoOwnProfileData{
@@ -240,7 +237,7 @@ struct MiiDataOwnProfileData{
 
 #[derive(Serialize)]
 #[serde(rename(serialize = "person"))]
-struct GetOwnProfileData{
+pub struct GetOwnProfileData{
     active_flag: YesNoVal,
     birth_date: NaiveDate,
     country: String,
@@ -278,7 +275,7 @@ fn build_own_profile(user: User) -> Ds<Xml<GetOwnProfileData>> {
     let User {
         username,
         pid,
-        account_level,
+        // account_level,
         mii_data,
         gender,
         birthdate,
@@ -292,6 +289,7 @@ fn build_own_profile(user: User) -> Ds<Xml<GetOwnProfileData>> {
         marketing_allowed,
         off_device_allowed,
         region,
+        // verification_code,
         ..
     } = user.into();
 
diff --git a/src/nnid/person_exists.rs b/src/nnid/person_exists.rs
index ddc5c98..51c2416 100644
--- a/src/nnid/person_exists.rs
+++ b/src/nnid/person_exists.rs
@@ -1,8 +1,6 @@
 use rocket::{get, State};
-use sqlx::Row;
 use crate::error::{Error, Errors};
 use crate::Pool;
-use crate::xml::Xml;
 
 
 #[get("/v1/api/people/<username>")]
diff --git a/src/nnid/provider.rs b/src/nnid/provider.rs
index 889e5b7..e46858b 100644
--- a/src/nnid/provider.rs
+++ b/src/nnid/provider.rs
@@ -1,21 +1,14 @@
 use std::net::Ipv4Addr;
-use std::str::FromStr;
 use rocket::{get, State};
 use serde::Serialize;
 use sqlx::types::ipnetwork::IpNetwork::V4;
 use crate::account::account::Auth;
 use crate::error::{Error, Errors};
-use crate::nnid::oauth::generate_token::{create_token, TokenRequestReturnData};
+use crate::nnid::oauth::generate_token::{create_token};
 use crate::nnid::oauth::generate_token::token_type::NEX_TOKEN;
-use crate::nnid::provider::Test::{A, B};
 use crate::Pool;
 use crate::xml::Xml;
 
-enum Test{
-    A(String),
-    B(i32)
-}
-
 const NO_IPV4_ERROR: Errors = Errors{
     error: &[
         Error{
diff --git a/src/nnid/support.rs b/src/nnid/support.rs
index 95dc1e0..439aeac 100644
--- a/src/nnid/support.rs
+++ b/src/nnid/support.rs
@@ -1,4 +1,4 @@
-use rocket::{get, State, post, FromForm, put};
+use rocket::{State, post, FromForm, put};
 use crate::Pool;
 use rocket::form::Form;
 use crate::email::send_verification_email;
@@ -15,7 +15,7 @@ const BAD_CODE_ERROR: Errors = Errors{
 };
 
 #[derive(FromForm)]
-struct ValidateEmailInput{
+pub struct ValidateEmailInput{
     email: String,
 }
 #[post("/v1/api/support/validate/email", data="<data>")]
diff --git a/src/nnid/timezones.rs b/src/nnid/timezones.rs
index 3f0ff3e..8373059 100644
--- a/src/nnid/timezones.rs
+++ b/src/nnid/timezones.rs
@@ -3,8 +3,7 @@ use std::{env, fs};
 use once_cell::sync::Lazy;
 use rocket::get;
 use serde::{Deserialize, Serialize};
-use serde_json::from_slice;
-use crate::xml::{serialize_with_version, Xml};
+use crate::xml::{Xml};
 
 #[derive(Serialize, Deserialize)]
 #[serde(rename(serialize = "timezone"))]
diff --git a/src/xml.rs b/src/xml.rs
index 88af660..a9a15d0 100644
--- a/src/xml.rs
+++ b/src/xml.rs
@@ -1,5 +1,4 @@
 use std::fmt::Formatter;
-use std::io::Cursor;
 use std::ops::{Deref, DerefMut};
 use std::result;
 use rocket::http::Status;
@@ -8,15 +7,11 @@ use rocket::response::Responder;
 use serde::{Deserialize, Deserializer, Serialize};
 use rocket::response::Result;
 use log::error;
-use quick_xml::events::{BytesDecl, Event};
 use quick_xml::se::Serializer;
 use quick_xml::{DeError, SeError};
 use rocket::data::{ByteUnit, FromData, Outcome};
 use rocket::response::content::RawXml;
-use rocket::response::status::BadRequest;
-use serde::__private::de::UntaggedUnitVisitor;
 use serde::de::{DeserializeOwned, Error, Visitor};
-use thiserror::Error;
 
 pub fn serialize_with_version(serializable: &impl Serialize) -> result::Result<Box<str>, SeError>{
     let mut write_dest = "<?xml version=\"1.0\"?>".to_owned();
@@ -61,7 +56,7 @@ impl<'r, 'o: 'r, T: Serialize> Responder<'r, 'o> for Xml<T>{
 impl<'r, T: DeserializeOwned> FromData<'r> for Xml<T>{
     type Error = Option<DeError>;
 
-    async fn from_data(req: &'r Request<'_>, data: Data<'r>) -> Outcome<'r, Self> {
+    async fn from_data(_req: &'r Request<'_>, data: Data<'r>) -> Outcome<'r, Self> {
         let data = data.open(1 * ByteUnit::MB);
 
         let Ok(data) = data.into_string().await else {
@@ -83,9 +78,9 @@ pub struct YesNoVal(pub bool);
 
 struct YesNoVisitor;
 
-#[derive(Debug, Error)]
-#[error("did not find Y or N")]
-struct NotYNError;
+// #[derive(Debug, Error)]
+// #[error("did not find Y or N")]
+// struct NotYNError;