apechkin

protected onResponseSuccess = async <T>(response: AxiosResponse): Promise<T> => {
  const config = response?.config || {}
  if (this.subject.getState() === 'pending') {
    let observer = null
    await new Promise<void>((resolve) => {
      observer = new Observer(resolve)
      this.subject.attach(observer)
    })
    this.subject.detach(observer)
    const configWithToken = this.updateConfigToken(config)

apechkin

// when T is any|unknown, Y is returned, otherwise N
type IsAnyUnknown<T, Y, N> = unknown extends T ? Y : N;
  
// when T is never, Y is returned, otherwise N
type IsNever<T, Y = true, N = false> = [T] extends [never] ? Y : N;

// empty object
type EmptyObject = { [key: string]: never };