The base URI for accessing the licensing API is https://api.paloaltonetworks.com/api/license;
based on the task you want to perform, for example activate licenses,
deactivate licenses, or track license use—the URL will change.
An API request must use the HTTP POST method, and you must include
the API key in the apikey HTTP request header and pass the request
parameters as URL-encoded form data with content-type application/x-www-form-urlencoded.
The API Version is optional and can include the following values—0
or 1. If specified, it must be included in the
request header. The current API version is 1; if you do not specify
a version, or specify version 0, the request uses the current API