docstr: Add the rule staging subparser: manage.py rule-staging [subcommand] [options]
docstr_tok: ["Add","the","rule","staging","subparser",":","manage.py","rule-staging","[","subcommand","]","[","options","]"]
code: def setup_subparser(cls, subparser):
      """Add the rule staging subparser: manage.py rule-staging [subcommand] [options]"""
      rule_staging_subparsers = subparser.add_subparsers(
          dest="rule-staging subcommand", required=True
      )
  
      cls._setup_rule_staging_enable_subparser(rule_staging_subparsers)
      cls._setup_rule_staging_status_subparser(rule_staging_subparsers)
      cls._setup_rule_staging_stage_subparser(rule_staging_subparsers)
      cls._setup_rule_staging_unstage_subparser(rule_staging_subparsers)
  
file_path: streamalert/streamalert_cli/rule_table.py
imports: from streamalert.shared.rule_table import RuleTable
  from streamalert_cli.utils import CLICommand, generate_subparser, UniqueSortedListAction
label_desc: Use image node_id 1 for calling the RuleStagingCommand obj's underlying member method code with example usage: obj.setup_subparser(cls, subparser) without return types