value = get(parameterName [, index]);
      where
         value: Value or values associated with the 
                requested parameter or parent node.
         parameterName: name of the desired parameter 
                or parent node.
         index: optional, used to retrieve indexed 
                parameter values
   set(parameterName, [index,] value);
      where
         parameterName: name of the desired parameter. 
         index: optional, used to set indexed parameter values
         value: new value for the specified parameter. The set()
         operation only works on individual parameter values.

Example 1: Pseudocode for the two main functions in the XML-RPC interface.