code: def elastic_container_registry(mocker):
      """Fixture for ElasticContainerRegistry class."""
      config = {
          "uri": "12345678.dkr.ecr.us-east-1.amazonaws.com/test-repo",
      }
      return ElasticContainerRegistry.from_config(config)
  
imports: import os
  from unittest.mock import MagicMock
  import boto3
  import kubernetes_asyncio
  import pytest
  import wandb
  from google.cloud import storage
  from wandb.sdk.launch._project_spec import EntryPoint, LaunchProject
  from wandb.sdk.launch.builder.kaniko_builder import KanikoBuilder, _wait_for_completion
  from wandb.sdk.launch.environment.aws_environment import AwsEnvironment
  from wandb.sdk.launch.environment.azure_environment import AzureEnvironment
  from wandb.sdk.launch.registry.azure_container_registry import AzureContainerRegistry
  from wandb.sdk.launch.registry.elastic_container_registry import ElasticContainerRegistry
label_desc: Use image node_id 4 for calling a global function with example usage: elastic_container_registry(mocker) and returns: ElasticContainerRegistry