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Memorystore Instance Cross Instance Replication addition (#13432) (#950)
[upstream:4a72b591b882645a803c578c097096c694eb9687] Signed-off-by: Modular Magician <[email protected]>
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‎memorystore_instance_secondary_instance/backing_file.tf‎

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# This file has some scaffolding to make sure that names are unique and that
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# a region and zone are selected when you try to create your Terraform resources.
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locals {
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name_suffix = "${random_pet.suffix.id}"
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}
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resource "random_pet" "suffix" {
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length = 2
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}
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provider "google" {
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region = "us-central1"
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zone = "us-central1-c"
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}

‎memorystore_instance_secondary_instance/main.tf‎

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// Primary instance
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resource "google_memorystore_instance" "primary_instance" {
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instance_id = "primary-instance-${local.name_suffix}"
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shard_count = 1
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desired_psc_auto_connections {
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network = google_compute_network.primary_producer_net.id
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project_id = data.google_project.project.project_id
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}
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location = "asia-east1"
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replica_count = 1
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node_type = "SHARED_CORE_NANO"
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transit_encryption_mode = "TRANSIT_ENCRYPTION_DISABLED"
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authorization_mode = "AUTH_DISABLED"
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engine_configs = {
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maxmemory-policy = "volatile-ttl"
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}
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zone_distribution_config {
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mode = "SINGLE_ZONE"
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zone = "asia-east1-c"
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}
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deletion_protection_enabled = false
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persistence_config {
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mode = "RDB"
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rdb_config {
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rdb_snapshot_period = "ONE_HOUR"
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rdb_snapshot_start_time = "2024-10-02T15:01:23Z"
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}
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}
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labels = {
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"abc" : "xyz"
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}
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depends_on = [google_network_connectivity_service_connection_policy.primary_policy]
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lifecycle {
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prevent_destroy = false
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}
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}
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resource "google_network_connectivity_service_connection_policy" "primary_policy" {
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name = "my-policy-primary-instance-${local.name_suffix}"
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location = "asia-east1"
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service_class = "gcp-memorystore"
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description = "my basic service connection policy"
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network = google_compute_network.primary_producer_net.id
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psc_config {
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subnetworks = [google_compute_subnetwork.primary_producer_subnet.id]
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}
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}
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resource "google_compute_subnetwork" "primary_producer_subnet" {
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name = "my-subnet-primary-instance-${local.name_suffix}"
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ip_cidr_range = "10.0.1.0/29"
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region = "asia-east1"
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network = google_compute_network.primary_producer_net.id
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}
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resource "google_compute_network" "primary_producer_net" {
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name = "my-network-primary-instance-${local.name_suffix}"
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auto_create_subnetworks = false
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}
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// Secondary instance
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resource "google_memorystore_instance" "secondary_instance" {
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instance_id = "secondary-instance-${local.name_suffix}"
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shard_count = 1
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desired_psc_auto_connections {
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network = google_compute_network.secondary_producer_net.id
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project_id = data.google_project.project.project_id
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}
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location = "europe-north1"
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replica_count = 1
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node_type = "SHARED_CORE_NANO"
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transit_encryption_mode = "TRANSIT_ENCRYPTION_DISABLED"
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authorization_mode = "AUTH_DISABLED"
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engine_configs = {
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maxmemory-policy = "volatile-ttl"
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}
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zone_distribution_config {
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mode = "SINGLE_ZONE"
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zone = "europe-north1-c"
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}
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deletion_protection_enabled = false
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// Cross instance replication config
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cross_instance_replication_config {
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instance_role = "SECONDARY"
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primary_instance {
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instance = google_memorystore_instance.primary_instance.id
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}
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}
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persistence_config {
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mode = "RDB"
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rdb_config {
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rdb_snapshot_period = "ONE_HOUR"
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rdb_snapshot_start_time = "2024-10-02T15:01:23Z"
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}
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}
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labels = {
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"abc" : "xyz"
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}
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depends_on = [google_network_connectivity_service_connection_policy.secondary_policy]
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lifecycle {
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prevent_destroy = false
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}
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}
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resource "google_network_connectivity_service_connection_policy" "secondary_policy" {
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name = "my-policy-secondary-instance-${local.name_suffix}"
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location = "europe-north1"
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service_class = "gcp-memorystore"
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description = "my basic service connection policy"
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network = google_compute_network.secondary_producer_net.id
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psc_config {
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subnetworks = [google_compute_subnetwork.secondary_producer_subnet.id]
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}
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}
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resource "google_compute_subnetwork" "secondary_producer_subnet" {
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name = "my-subnet-secondary-instance-${local.name_suffix}"
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ip_cidr_range = "10.0.2.0/29"
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region = "europe-north1"
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network = google_compute_network.secondary_producer_net.id
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}
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resource "google_compute_network" "secondary_producer_net" {
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name = "my-network-secondary-instance-${local.name_suffix}"
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auto_create_subnetworks = false
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}
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data "google_project" "project" {
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}

‎memorystore_instance_secondary_instance/motd‎

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===
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These examples use real resources that will be billed to the
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Google Cloud Platform project you use - so make sure that you
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run "terraform destroy" before quitting!
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===

‎memorystore_instance_secondary_instance/tutorial.md‎

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# Memorystore Instance Secondary Instance - Terraform
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## Setup
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<walkthrough-author name="[email protected]" analyticsId="UA-125550242-1" tutorialName="memorystore_instance_secondary_instance" repositoryUrl="https://github.com/terraform-google-modules/docs-examples"></walkthrough-author>
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Welcome to Terraform in Google Cloud Shell! We need you to let us know what project you'd like to use with Terraform.
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<walkthrough-project-billing-setup></walkthrough-project-billing-setup>
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Terraform provisions real GCP resources, so anything you create in this session will be billed against this project.
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## Terraforming!
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Let's use {{project-id}} with Terraform! Click the Cloud Shell icon below to copy the command
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to your shell, and then run it from the shell by pressing Enter/Return. Terraform will pick up
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the project name from the environment variable.
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```bash
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export GOOGLE_CLOUD_PROJECT={{project-id}}
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```
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After that, let's get Terraform started. Run the following to pull in the providers.
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```bash
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terraform init
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```
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With the providers downloaded and a project set, you're ready to use Terraform. Go ahead!
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```bash
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terraform apply
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```
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Terraform will show you what it plans to do, and prompt you to accept. Type "yes" to accept the plan.
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```bash
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yes
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```
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## Post-Apply
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### Editing your config
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Now you've provisioned your resources in GCP! If you run a "plan", you should see no changes needed.
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```bash
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terraform plan
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```
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So let's make a change! Try editing a number, or appending a value to the name in the editor. Then,
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run a 'plan' again.
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```bash
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terraform plan
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```
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Afterwards you can run an apply, which implicitly does a plan and shows you the intended changes
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at the 'yes' prompt.
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```bash
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terraform apply
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```
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```bash
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yes
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```
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## Cleanup
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Run the following to remove the resources Terraform provisioned:
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```bash
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terraform destroy
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```
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```bash
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yes
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```

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