docs: static Policy getIamPolicySource(SourceName sourceName) {
      try (SecurityCenterClient client = SecurityCenterClient.create()) {
        // Start setting up a request to get IAM policy for a source.
        // SourceName sourceName = SourceName.of(/*organization=*/"123234324",/*source=*/
        // "423432321");
        GetIamPolicyRequest request =
            GetIamPolicyRequest.newBuilder().setResource(sourceName.toString()).build();
  
        // Call the API.
        Policy response = client.getIamPolicy(request);
  
        System.out.println("Policy: " + response);
        return response;
      } catch (IOException e) {
        throw new RuntimeException("Couldn't create client.", e);
      }
    }