If I have a string that is heap allocated:

auto jsonString = `{"a": "b",`;
jsonString ~= `"c": 1}`;

Now, if I parse this using vibe.data.json into a Json object, what
happens if I delete the jsonString? Will this destroy the memory used by
the Json object? I'm assuming so, but I wanted to understand if Json is
already doing this or not.

-Steve