[(plugin-sm1.socket)
[[$[(sm1.socket) key [args] ] extension result-object$]
 [( key  :  open, connect, accept, select, mselect, read, write, readByte, writeByte, close.)
  (Note that read and write are used for only string data.)
 ]
 [(See also Kan/debug/server.sm1)]
]] putUsages