set_wep_key
Description:
Sets a WEP key in the given index.
Parameters:
| this | |
| idx | 
           the index of the key (0..3 inclusive)  | 
      
| key | 
           the WEP key as a string, in either hexadecimal, ASCII, or passphrase form as determined by the value of the wep_key_type property.  |