openapi-generatorで生成されたrustのコードでエラーがでる。

openapi-generatorで以下のコードが生成されたのですが、エラーが出てしまいます。

/*
 * EPGStation
 *
 * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
 *
 * The version of the OpenAPI document: 1.5.4
 * 
 * Generated by: https://openapi-generator.tech
 */


#[allow(unused_imports)]
use serde_json::Value;


#[derive(Debug, Serialize, Deserialize)]
pub struct RecordedDeletes {
    #[serde(rename = "recordedIds")]
    pub recorded_ids: Vec<i32>,
    /// onlyTs: TS だけ削除, onlyEncoded: エンコード済みファイル削除のみ削除
    #[serde(rename = "option", skip_serializing_if = "Option::is_none")]
    pub option: Option<String>,
}

impl RecordedDeletes {
    pub fn new(recorded_ids: Vec<i32>) -> RecordedDeletes {
        RecordedDeletes {
            recorded_ids: recorded_ids,
            option: None,
        }
    }
}

/// onlyTs: TS だけ削除, onlyEncoded: エンコード済みファイル削除のみ削除
#[derive(Debug, Serialize, Deserialize)]
pub enum Option {
    #[serde(rename = "onlyTs")]
    OnlyTs,
    #[serde(rename = "onlyEncoded")]
    OnlyEncoded,
}

エラー1

warning: unused import: `super::models::*`
  --> generated/src/apis/mod.rs:52:5
   |
52 | use super::models::*;
   |     ^^^^^^^^^^^^^^^^
   |
   = note: #[warn(unused_imports)] on by default

warning: unused import: `std::collections::HashMap`
  --> generated/src/apis/configuration.rs:12:5
   |
12 | use std::collections::HashMap;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0107]: wrong number of type arguments: expected 0, found 1
  --> generated/src/models/recorded_deletes.rs:22:24
   |
22 |     pub option: Option<String>,
   |                        ^^^^^^ unexpected type argument

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.
error: Could not compile `openapi`.

To learn more, run the command again with --verbose.

<String>を消してみましたが次に以下のエラーが出るようになってしまいました。

エラー2

warning: unused import: `super::models::*`
  --> generated/src/apis/mod.rs:52:5
   |
52 | use super::models::*;
   |     ^^^^^^^^^^^^^^^^
   |
   = note: #[warn(unused_imports)] on by default

warning: unused import: `std::collections::HashMap`
  --> generated/src/apis/configuration.rs:12:5
   |
12 | use std::collections::HashMap;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: unreachable expression
   --> generated/src/apis/recorded_api.rs:172:9
    |
172 | /         __internal_request::Request::new(hyper::Method::Post, "/recorded/{id}/upload".to_string())
173 | |             .with_path_param("id".to_string(), id.to_string())
174 | |             .with_form_param("directory".to_string(), directory.to_string())
175 | |             .with_form_param("encoded".to_string(), encoded.to_string())
176 | |             .with_form_param("name".to_string(), name.to_string())
177 | |             .with_form_param("file".to_string(), unimplemented!())
    | |__________________________________________________________________^
    |
    = note: #[warn(unreachable_code)] on by default

error[E0599]: no variant or associated item named `is_none` found for type `models::recorded_deletes::Option` in the current scope
  --> generated/src/models/recorded_deletes.rs:21:54
   |
21 |     #[serde(rename = "option", skip_serializing_if = "Option::is_none")]
   |                                                      ^^^^^^^^^^^^^^^^^ variant or associated item not found in `models::recorded_deletes::Option`
...
36 | pub enum Option {
   | --------------- variant or associated item `is_none` not found here

error[E0308]: mismatched types
  --> generated/src/models/recorded_deletes.rs:29:21
   |
29 |             option: None,
   |                     ^^^^ expected enum `models::recorded_deletes::Option`, found enum `std::option::Option`
   |
   = note: expected type `models::recorded_deletes::Option`
              found type `std::option::Option<_>`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0308, E0599.
For more information about an error, try `rustc --explain E0308`.
error: Could not compile `openapi`.

To learn more, run the command again with --verbose.

解決法はありますでしょうか。