Sending raw XML using savon(Ruby gem) without WSDL file

Let's say you are a software developer using Ruby. If you want to work with the SOAP API, it's best to use savon. Basically, savon assumes that you have a WSDL file. However, unfortunately, sometimes you can't get the WSDL file from the API provider. You won't be able to find a way to write to send the raw XML. In such a case, the following sample code may help you. The first argument can be any option. Try it!