code: def mock_s3_bucket():
      """
      Creates a mock S3 bucket using moto
  
      :return: The name of the mock bucket
      """
      import boto3
      import moto
  
      with moto.mock_s3():
          bucket_name = "mock-bucket"
          s3_client = boto3.client("s3")
          s3_client.create_bucket(Bucket=bucket_name)
          yield bucket_name
  
imports: import inspect
  import os
  import shutil
  import subprocess
  from unittest import mock
  import pytest
  import mlflow
  from mlflow.tracking._tracking_service.utils import _use_tracking_uri
  from mlflow.utils.file_utils import path_to_local_sqlite_uri
  from mlflow.utils.os import is_windows
  from tests.autologging.fixtures import enable_test_mode
label_desc: Use image node_id 8 for calling a global function with example usage: mock_s3_bucket() without return types