List findings with security marks

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	"cloud.google.com/go/securitycenter/apiv1/securitycenterpb"
	"google.golang.org/api/iterator"
)

// listFindingsWithMarks prints findings that don't have a security mark
// key_a equal to value_a to w.  sourceName is the full resource name
// of the source to search for findings under.
func listFindingsWithMarks(w io.Writer, sourceName string) error {
	// sourceName := "{parent}/sources/{sourceId}"
	// where,
	// Parent must be in one of the following formats:
	//		"organizations/{orgId}"
	//		"projects/{projectId}"
	//		"folders/{folderId}"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %w", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &securitycenterpb.ListFindingsRequest{
		Parent: sourceName,
		Filter: `NOT security_marks.marks.key_a="value_a"`,
	}
	it := client.ListFindings(ctx, req)
	for {
		result, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return fmt.Errorf("it.Next: %w", err)
		}
		finding := result.Finding
		fmt.Fprintf(w, "Finding Name: %s, ", finding.Name)
		fmt.Fprintf(w, "Resource Name %s, ", finding.ResourceName)
		fmt.Fprintf(w, "Category: %s\n", finding.Category)
	}
	return nil
}

static ImmutableList<ListFindingsResult> listFindingsWithQueryMarks(SourceName sourceName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to list all findings filtered by a specific security mark.
    //
    // 'parent' must be in one of the following formats:
    //    * OrganizationName organizationName = OrganizationName.of("organization-id");
    //      String parent = organizationName.getOrganization();
    //    * ProjectName projectName = ProjectName.of("project-id");
    //      String parent = projectName.getProject();
    //    * FolderName folderName = FolderName.of("folder-id");
    //      String parent = folderName.getFolder();
    // SourceName sourceName = SourceName.of(parent, {source-id});

    String filter = "NOT security_marks.marks.key_a=\"value_a\"";

    ListFindingsRequest.Builder request =
        ListFindingsRequest.newBuilder().setParent(sourceName.toString()).setFilter(filter);

    // Call the API.
    ListFindingsPagedResponse response = client.listFindings(request.build());

    // This creates one list for all findings in the filter.If your organization has a large
    // number of
    // findings this can cause out of memory issues.  You can process them batches by returning
    // the Iterable returned response.iterateAll() directly.
    ImmutableList<ListFindingsResult> results = ImmutableList.copyOf(response.iterateAll());
    System.out.println("Findings with security mark - key_a=value_a:");
    System.out.println(results);
    return results;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();
//  sourceName is the full resource path of the source to search for
//  findings.
/*
 * TODO(developer): Uncomment the following lines
 */
// const sourceName = `${parent}/sources/${sourceId}`;
// where,
// parent: must be in one of the following formats:
//    `organizations/${organization_id}`
//    `projects/${project_id}`
//    `folders/${folder_id}`

async function listFindingsWithSecurityMarks() {
  const [response] = await client.listFindings({
    // List findings across all sources.
    parent: sourceName,
    filter: 'NOT security_marks.marks.key_a="value_a"',
  });
  let count = 0;
  Array.from(response).forEach(result =>
    console.log(
      `${++count} ${result.finding.name} ${result.finding.resourceName}`
    )
  );
}
listFindingsWithSecurityMarks();

from google.cloud import securitycenter

client = securitycenter.SecurityCenterClient()

# 'source_name' is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "{parent}/sources/{source_id}"
# 'parent' must be in one of the following formats:
#   "organizations/{organization_id}"
#   "projects/{project_id}"
#   "folders/{folder_id}"
# source_name = "organizations/111122222444/sources/1234"
marks_filter = 'NOT security_marks.marks.finding_key_a="value_a"'

# Call the API and print results.
finding_iterator = client.list_findings(
    request={"parent": source_name, "filter": marks_filter}
)
for i, finding_result in enumerate(finding_iterator):
    print(i, finding_result)