code: def aws_credentials():
      """Mocked AWS Credentials for moto."""
      os.environ["AWS_ACCESS_KEY_ID"] = "testing"
      os.environ["AWS_SECRET_ACCESS_KEY"] = "testing"
      os.environ["AWS_SECURITY_TOKEN"] = "testing"
      os.environ["AWS_SESSION_TOKEN"] = "testing"
  
imports: import os
  import boto3
  import pytest
  from moto import mock_s3
  from pycaret.internal.persistence import deploy_model, load_model
label_desc: Use image node_id 1 for calling a global function with example usage: aws_credentials() without return types