Typescript: `unit` seems to be wrongly defined as `undefined` in Typescript

[d4h0]

Hi,

I've the following Rust code:

#[derive(Debug, serde::Serialize)]
#[typeshare::typeshare]
#[serde(tag = "type", content = "content")]
pub enum Cmd {
    StartBrowser(StartBrowser),
}

#[derive(Debug, serde::Serialize)]
#[typeshare::typeshare]
pub struct StartBrowser(pub ());

...which generates the following Typescript code:

export type StartBrowser = undefined;

export type Cmd = 
	| { type: "StartBrowser", content: StartBrowser };

...however, serde_json serializes Cmd::StartBrowser(StartBrowser(())) as {"type":"StartBrowser","content":null} (please note the null instead of the above defined undefined).

I'm not 100% sure, but I believe serde_json uses undefined to represent optional values (i.e., Rust's Option type).

[LuminaSapphira]

We ran into some issues wherein previously working FFI calls in downstream projects broke. As a result in #97 the changes were reverted. This is still on our radar, but we'd ideally want to avoid breaking our downstream projects. In the meantime, further discussion can be held here.