code: def execute(self, argv: List) -> bool:
      msg = "Usage:\n"
      msg += "    hub <command> <options>\n\n"
      msg += "Commands:\n"
      for command, detail in _commands["hub"].items():
          if command.startswith("_"):
              continue
  
          if not "_description" in detail:
              continue
          msg += "    {:<15}        {}\n".format(
              command, detail["_description"]
          )
  
      print(msg)
      return True
  
imports: from typing import List
  import paddlehub
  from paddlehub.commands import register, _commands
label_desc: Use image node_id 1 for calling the HelpCommand obj's underlying member method code with example usage: obj.execute(argv) and returns: True