internal static void AttachObjectContent <TInput>(this HttpRequestMessage requestMessage, TInput input,
MediaFormat mediaFormat)
{
if (requestMessage == null)
{
throw new NullReferenceException(
$"{nameof(HttpResponseMessage)} is null, could not attach a Mediatype.");
}
requestMessage.Content = new ObjectContent(typeof(TInput), input, mediaFormat.MediaTypeFormatter());
}