RustSerdeHTTP：序列化`Option`

我正在try 使用我的请求 struct 设置serde，以将其转换为JSON，以便将其传递给API:

#[serde_with::skip_serializing_none]
#[derive(Serialize, Debug, Default)]
#[serde(rename_all = "camelCase")]
pub struct Request {
    #[serde(with = "http_serde::uri")]
    url: http::Uri,
    http_response_body: Option<bool>,
    #[serde(with = "http_serde::method")]
    http_request_method: Option<http::Method>,
}

我希望有一些字段是可选的，如果它们是None，那么我只想从序列化中省略它们.我使用serde_with跳过None个字段，它适用于http_response_body: Option<bool>，但不适用于http_request_method: Option<http::Method>.我收到以下错误:

error[E0308]: mismatched types
   --> src\zyte.rs:7:10
    |
7   | #[derive(Serialize, Debug, Default)]
    |          ^^^^^^^^^
    |          |
    |          expected struct `Method`, found enum `Option`
    |          arguments to this function are incorrect
    |
    = note: expected reference `&Method`
               found reference `&'__a std::option::Option<Method>`
note: function defined here
   --> C:\Users\isaac\.cargo\registry\src\github.com-1ecc6299db9ec823\http-serde-1.1.2\src\lib.rs:237:12
    |
237 |     pub fn serialize<S: Serializer>(method: &Method, ser: S) -> Result<S::Ok, S::Error> {
    |            ^^^^^^^^^
    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0308`.
error: could not compile `rust-simple-scraper` due to previous error

我能做些什么才能让这件事起作用？