def METHOD_NAME():
    aws_settings = AWSSettings.create_from_env()
    boto3_session = aws_settings.create_boto3_session()
    ec2_resource = boto3_session.resource("ec2")
    ec2_client = boto3_session.client("ec2")
    cleanup_old_ec2_instances_and_related_objects(
        ec2_client=ec2_client,
        ec2_resource=ec2_resource,
        aws_settings=aws_settings,
    )
    cleanup_stray_security_groups(
        ec2_resource=ec2_resource,
        aws_settings=aws_settings,
    )
    cleanup_stray_volumes(
        ec2_resource=ec2_resource,
        aws_settings=aws_settings,
    )
    cleanup_old_ami_images(
        ec2_resource=ec2_resource,
    )