[Feature Request] Missing documentation for `az devops invoke`

**Is your feature request related to a problem? Please describe.**
It's impossible to figure out the name of a resource for `az devops invoke`, there's no documentation and no way how to figure out the name from the rest api documentation.

**Describe the solution you'd like**
There should be a way how to figure out the correct `area` and `resource` for each REST api call.

**Additional context**

I wanted to use the `az devops invoke` command to get a list of leases for a build: https://learn.microsoft.com/en-us/rest/api/azure/devops/build/builds/get-retention-leases-for-build?view=azure-devops-rest-7.1

I tried to use `--resource leases`, but that failed. The correct resource is `buildleases`, I haven't found this documented anywhere, I had to modify the invoke.py source code to find the full list of all resource location.