[Click] Write handler in CLICK

[Rajesh Prasad]

Hi,

Can anyone please give me some direction how the write handler passes the 
parameter( written below) in CLICK router. 

write_handler.pl srcr/sendmgr.max_xmits 1
write_handler.pl srcr/arp.insert 5.191.186.212 00:11:95:BF:BA:D4
write_handler.pl srcr/set_sr.set_route 5.137.112.229 5.22.131.89

Thanks in advance
Rajesh