I get error Unhandled error: TypeError: github.orgs.cancelInvitation is not a function with this code:

- name: CancelInvitation
  uses: actions/github-script@v4
  [...]
  script: |
       github.orgs.cancelInvitation({
                org: "organization",
                invitation_id: 00000,
        });

A call from console.log('Test: ', github.orgs); shows that the method is really missing.

Another little question:
I use allway in my GH-Workflows the octokit methods with "github." instead of "octokit.rest."
Wrong?