Wordpresss plugin

I am testing the service within Wordpress plug in, it asks for user id and private key


what are those?

After that, how do I call the document - can’t find any “how to” docs
Hi

This query has been answered through email. I'm copy pasting the email content for your reference. Please feel free to get back to us if you need any help.

"Hi there,

We're sorry to hear that you have issues with GroupDocs plugin integration WordPress.
You must have a GroupDocs account to locate the user ID and private key. When you enter the information to your WordPress site, it lets you access GroupDocs files from within your WordPress site.
We’re not sure which GroupDocs app you’ve integrated with WordPress site. However, please find the instructions given below for integrating GroupDocs Viewer plugin with WordPress and retrieving the API Keys. The steps are similar in nature for all other GroupDocs apps (Annotation, Signature, etc.).
Please feel free to share your doubts or chat with us for instant solutions.

Many thanks,
Vaseem Mansoor,
GroupDocs Support "