import { buildClient } from '@datocms/cma-client-node';
async function run() {
  const client = buildClient({ apiToken: '<YOUR_API_TOKEN>' });
  
  const siteInvitationId = '312';
  
  const siteInvitation = await client.siteInvitations.destroy(siteInvitationId);
  
  console.log(siteInvitation);
}
run();

{
  id: '312',
  email: 'mark.smith@example.com',
  role: {
    type: 'role',
    id: '34'
  }
}