Tango JSON Parser: Accessing the members

[Benji Smith]

I've been trying out the new tango JSON parser, and the functionality 
for actually parsing the string is very easy to invoke. But I can't 
figure out, for the life of me, how to read the individual children of 
the resultant object hierarchy.

Here's what I've got:

module mymodule;

import tango.text.json.Json;

void main() {

   char[] json = `{"t": true}`;

   auto parser = new Json!(char);

   // "Error: identifier 'JsonValue' is not defined"
   JsonValue* jsonValue = p.parse(json);

   // "Error: identifier 'JsonObject' is not defined"
   JsonObject jsonObject = p.parse(json).toObject();

   // "Error: identifier 'Composite' is not defined"
   Composite composite = p.parse(json).toObject();

}

I'm sure I'm missing something from my 'import' declarations, but I've 
tried adding "tango.text.json.JsonValue" or 
"tango.text.json.Json.JsonValue" or "tango.text.json.Json.Composite" and 
the compiler has not been happy with any of those (each of which is a 
struct or an alias defined within the Json class).

Has anyone else tinkered with the JSON stuff yet? Any ideas?

Thanks!

--benji