Natasa Radenovic

### Describe the bug The Twilio SDK allows its users to set different RequestConfig by including code like: ``` RequestConfig config = RequestConfig.custom() .setConnectionRequestTimeout(Timeout.ofMilliseconds(connectionRequestTimeout)) .setResponseTimeout(Timeout.ofMilliseconds(responseTimeout)) .setConnectionKeepAlive(Timeout.ofMilliseconds(connectionKeepAlive)) .build(); NetworkHttpClient httpClient =...