Methods common to all lazyNut objects
=====================================

description
-----------

	object description
	object

Emit a description of `object` that in XML includes at least the elements
`pretty name`; `type`; and `subtype`.  `subtype` includes zero or more
sub-elements indicating the `object`'s facets.  

The non-XML version's output is in one of the forms:
	object is a type/subtype: Key: value; Key: value; ...
	pretty-name [object] is a type/subtype: Key: value; Key: value; ...
	object is a type/{facet,facet,...}: Key: value; Key: value; ...
	pretty-name [object] is a type/{facet,...,...}: Key: value; Key: value; ...

type
----

	object type subtype

Change `object`'s subtype to `subtype`.

setters
-------

	object setters

List //lazyNut// commands for modifying elements of the `object`'s 
description.

commands
--------

	object commands

List all methods that apply to `object`.	


set_pretty_name
---------------

	object set_pretty_name pretty_name

Associate the display name `pretty_name` with `object`.

add_facet
---------

	object add_facet facet_type

Add a facet of facet type `facet_type` to `object`, destroying the existing
facet of the same role, if such exists.

add_hint
--------

	object add_hint key value...

Add the pair `key`-`value` to the hints component of the description of `object`.

add_hint_plus
-------------

	object add_hint_plus extra_key extra_value key value...

Add the pair `key`-`value` to the hints component of the description of `object`; an
additional sub-key `extra_key` associated with the value `extra_value` will be added 
nested within the new hint.

change_hint
-----------

	object change_hint key value...

Change the pair with key `key` to `key`-`value` in the hints component of the 
description of `object`.