How to call Https with Retrofit 2 and OkHttpClient

Retrofit2Https.kt

object Retrofit2Https {
    fun createHttpClient(context: Context): OkHttpClient {
        // Loads "my_certificate.crt" from res/raw/my_certificate.crt
        val cf: CertificateFactory = CertificateFactory.getInstance("X.509")
        val caInput: InputStream = BufferedInputStream(context.resources.openRawResource(R.raw.my_certificate))
        val ca: X509Certificate = caInput.use {
            cf.generateCertificate(it) as X509Certificate
        }

        // Create a KeyStore with the certificate
        val keyStoreType = KeyStore.getDefaultType()
        val keyStore = KeyStore.getInstance(keyStoreType).apply {
            load(null, null)
            setCertificateEntry("ca", ca)
        }

        // Create a TrustManager that trusts the certificate
        val tmfAlgorithm: String = TrustManagerFactory.getDefaultAlgorithm()
        val tmf: TrustManagerFactory = TrustManagerFactory.getInstance(tmfAlgorithm).apply {
            init(keyStore)
        }

        // Create an SSLContext that uses our TrustManager
        val context = SSLContext.getInstance("TLS").apply {
            init(null, tmf.trustManagers, null)
        }
        val x509TrustManager = tmf.trustManagers.first() as X509TrustManager

        return OkHttpClient()
                .newBuilder()
                .sslSocketFactory(context.socketFactory, x509TrustManager)
                .build()
    }


    val retrofit = Retrofit.Builder()
            .baseUrl("https://google.com")
            .client(createHttpClient(context))
            .build()
    val myService = retrofit.create(MyService::class.java)
    val response = myService.load().execute()
}