docstr: Add the rollback subparser: manage.py rollback [options]
code: def setup_subparser(cls, subparser):
      """Add the rollback subparser: manage.py rollback [options]"""
      set_parser_epilog(
          subparser,
          epilog=(
              """\
                  Example:
  
                      manage.py rollback --function rule
                  """
          ),
      )
  
      add_default_lambda_args(subparser)
  
file_path: streamalert/streamalert_cli/manage_lambda/rollback.py
imports: import boto3
  from botocore.exceptions import ClientError
  from streamalert.shared.logger import get_logger
  from streamalert_cli.terraform.generate import terraform_generate_handler
  from streamalert_cli.utils import add_default_lambda_args, CLICommand, function_map, set_parser_epilog
label_desc: Use image node_id 1 for calling the RollbackCommand obj's underlying member method code with example usage: obj.setup_subparser(cls, subparser) without return types