I need to use gcloud NLP api which has the url and endpoint like this "https://language.googleapis.com/v1beta2/documents:analyzeSentiment". The ":" between documents and analyzeSentiment make a lot trouble for me. Just don't know how to setup the @path in RestInterface for such endpoint. I tried many, including /documents:analyzeSentiment but all failed, cannot go to the right path...

any idea? thank in advance.