Is it possible to set a base type in SWR using TypeScript?

[Red-Killer]

I want to ensure that when using useSWR in Next.js, the returned data always contains two specific fields:

• success: boolean
• message?: string

This should be the default behavior, without the need to explicitly define useSWR<BaseResponse>("/somepath") every time. Additionally, it should be extendable if another type is passed.

For example:

const { data } = useSWR("/somepath")

The data would have the following structure by default:

{
  success: boolean;
  message?: string;
}

However, when you extend with another type, like this:

const { data } = useSWR<SomeOtherType>("/somepath")

The resulting data type would look like:

{
  success: boolean;
  message?: string;
  username: string;  // Added because of SomeOtherType
}

Is something like that possible?