host# casual --help gateway
gateway [0..1]
     gateway related administration
   SUB OPTIONS:
      -lc, --list-connections [0..1]
           list all connections
      -ll, --list-listeners [0..1]
           list all listeners
      --list-inbound-groups [0..1]
           list all inbound groups
      --list-outbound-groups [0..1]
           list all outbound groups
      --legend [0..1]
           show legend for the output of the supplied option
           
           Documentation and description for abbreviations and acronyms used as columns in output
           
           The following options has legend:                       
         SUB OPTIONS:
            --list-connections [0..1]
                 list legend for --list-connections
      --state [0..1]  (json, yaml, xml, ini, line) [0..1]
           prints state in the provided format to stdout
      [deprecated] -ls, --list-services [0..1]
           @removed - use casual service --list-instances
      [deprecated] -lq, --list-queues [0..1]
           @removed - use casual queue --list-queue-instances
      [deprecated] --rediscover [0..1]
           @removed - moved to casual discover --rediscover