docstr: Add configure subparser: manage.py configure key value
docstr_tok: ["Add","configure","subparser",":","manage.py","configure","key","value"]
code: def setup_subparser(cls, subparser):
      """Add configure subparser: manage.py configure key value"""
      set_parser_epilog(
          subparser,
          epilog=(
              """\
                  Example:
  
                      manage.py configure prefix orgname
                  """
          ),
      )
  
      subparser.add_argument(
          "key",
          choices=["prefix", "aws_account_id"],
          help="Value of key being configured",
      )
  
      subparser.add_argument(
          "value", help="Value to assign to key being configured"
      )
  
imports: from streamalert_cli.utils import CLICommand, set_parser_epilog
label_desc: Use image node_id 1 for calling the ConfigureCommand obj's underlying member method code with example usage: obj.setup_subparser(cls, subparser) without return types