Help creating SNMP Check

Troubleshooting
3

This is what i have currently. Witch dose not seem to work

def inventory_netg_cpu(info):
   # Debug: lets see how the data we get looks like
   print info
   return []

def check_netg_cpu(item, params, info):
   return (3, "UNKNOWN - not yet implemented")

check_info["netg_cpu"] = {
    "check_function"        : check_netg_cpu,
    "inventory_function"    : inventory_netg_cpu,
    "service_description"   : "NIC %s",
    "snmp_info"             : ( ".1.3.6.1.4.1.4526.11.1.1.4.9.0", [ "2", "3", "8" ] )
}