><CODE>$(o.add &lt;key&gt;, &lt;value&gt;)</CODE>: adds the field to the map,
returning a new map.
</LI><LI CLASS="li-itemize"><CODE>$(o.find &lt;key&gt;)</CODE>: fetches the field from the map.
</LI><LI CLASS="li-itemize"><CODE>$(o.keys)</CODE>: fetches an array of all the keys in the map, in alphabetical order.
</LI><LI CLASS="li-itemize"><CODE>$(o.values)</CODE>: fetches an array of all the values in the map,
in the alphabetical order of the corresponding keys.
</LI><LI CLASS="li-itemize"><CODE>$(o.map &