Interface SignalLike

Minimal duck-typed AbortSignal interface. Accepts both the native AbortSignal and polyfills (e.g. node-abort-controller) whose signal class is not an instanceof the native AbortSignal.

interface SignalLike {
    aborted: boolean;
    reason?: unknown;
    addEventListener(
        type: "abort",
        listener: () => void,
        options?: { once?: boolean },
    ): void;
}