docs: def showInvLines(rh):
      """
      Produce help output related to command synopsis
  
      Input:
         Request Handle
      """
  
      if rh.subfunction != '':
          rh.printLn("N", "Usage:")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost " +
          "diskpoolnames")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost " +
          "diskpoolspace <poolName>")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost fcpdevices")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost general")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost help")
      rh.printLn("N", "  python " + rh.cmdName + " GetHost version")
      return