Is there a possibility to have a nested struct not declared in openapi spec ?

[MikeDevresse]

Hi,
I have a project that works with Gitlab webhooks. So it receive data under the form:

{
  ...
  "project": {
    ...
    "web_url": "http:https://example.com"
  }
}

In rust because I can't declare nested structures, I declared two structs:

#[derive(Object)]
struct WebhookBody {
    project: WebhookBodyProject,
}

#[derive(Object)]
struct WebhookBodyProject {
    web_url: String,
}

The problem with that is that in my openapi spec, I have a WebhookBodyProject schema, but I only want the WebhookBody one. Is there a way to remove the WebhookBodyProject from the documentation or just remove the #[derive(Object)] and still be able to use it ?