function 
    /usr/local/lib/janet/spork/rpc.janet  on  line  29 , column  1 
    (server  functions  &opt  host  port  workers-per-connection )
    Create  an  RPC  server.  The  default  host  is  "127.0.0.1"  and  the  
    default  port  is  "9366" .  Also  must  take  a  dictionary  of  functions  
    that  clients  can  call.