@SuppressWarnings("unchecked")
    public <T> T getValue(String key)
    {
        return (T) params.get(key);
    }
Shorthand for {@link #getParams()}.
<p>

<pre>
If you have an annotation like &#64;Foo(id = 1), you then can use:
&lt;if(message.a.("Foo")&gt;
&lt;if(message.a.("Foo").p.("id")&gt;
...
&lt;endif&gt;
&lt;endif&gt;
</pre>
protostuff-parser/src/main/java/io/protostuff/parser/Annotation.java