What do i have to put into nswag.json file so it downloads v2, v3, vN swagger.json?

[goors]

I have two docs, one from v2, other for v3. Now I am not sure that this is correct way first? Having that like in two separate docs?

{
"documentGenerator": {
    "fromDocument": {
      "url": "http://localhost:5000/swagger/v2/swagger.json",
      "output": null,
      "newLineBehavior": "Auto"
    }
  },
  "codeGenerators": {
    "openApiToTypeScriptClient": {
      "className": "{controller}Client", 
     .... other things
   }
}

now that is one url v2 what about v3 to vN?

Is there a way to automate this and have multiple urls? I have "className": "{controller}Client", somehow dynamic like "className": "{controller}ClientV2" or "className": "{controller}ClientV3", and so on.?

So i need just one file instead of having a bunch of that nswag.json files each time i add new version.