Shipment refund request method is not clear

[askabelin]

Hi. The documentation says that a shipment can be refunded using POST request.
However the library does GET request.

Is it documentation or library bug? Or am I missing something?

[Justintime50]

Hey @askabelin, nice catch! This will technically work with GET as there are no params; however, to clarify I've submitted a PR. It should be POST.