/**
     * Returns a new chain with the specified [SSLSocketFactory].
     *
     * @throws IllegalStateException if this is a Network Interceptor, since the override is too late.
     */
    fun withSslSocketFactory(
      sslSocketFactory: SSLSocketFactory?,
      x509TrustManager: X509TrustManager?,
    ): Chain

    /**
     * Returns the [X509TrustManager] for the OkHttpClient, or an override from the Call.Chain.