iRule for Snat pool association

Ok Thanks for the answers. Now i have another question...if i want to parse the IP address and pass it to snat address like this :

192.168.0.0--> 10.168.x.x

How can i implement it?

when CLIENT_ACCEPTED { set xyz [findstr [IP::client_addr] 4 ] ltm data-group internal SnatAddress { records { 192.168.0.0/24 {} 192.168.1.0/24 {} 192.168.3.0/24 {} 192.168.6.0/24 {} 192.168.11.0/24 {} 192.168.12.0/24 {} 192.168.13.0/24 {} 192.168.30.0/24 {} 192.168.40.0/24 {} 192.168.200.0/24 {} 192.168.254.0/24 {}

} 
type ip 

}

Check if the client IP address is a member of the address data group named Hosts

if { [matchclass [IP::client_addr] equals SnatAddress]} {

     set xyz "dieci"


switch $xyz {
               "dieci" { snat 10.$xyz }
                }
   }

else { discard } } return

}

}

Default action is to not SNAT

snat none

Is it possible?