API Designer/swagger generation: Distinct description for every method

I wonder if there's a way to tell the generation process to use a description per HTTP method, not (only) per endpoint

Example:

builder.AddMethod(
    Method.Define("test")
        .Handle<TestData>("PUT", (t, r) => { })
        .Handle<TestData>("PATCH", (t, r) => { })
        .Handle("DELETE", r => { })
);

I want to have a description for PUT /test, one for PATCH /test and completly different description for DELETE /test here.

But I'm only able to find a global WithDescription() to set a value for the whole endpoint. What am I missing?