class MyStuff(gexml.Model): items = fields.Dict(item, key="name", required=False)
class MyStuff(gexml.Model): items = fields.Dict(item, key="wrongname")
class SaneDict(gexml.Model): item = fields.Dict(GreedyField(tagname="item"), key="name")
class obj(gexml.Model): items = fields.Dict('item', key='name', dictclass=_dict)
class obj(gexml.Model): items = fields.Dict('item', key='name', tagname='items')
class obj(gexml.Model): items = fields.Dict(fields.Model(item), key='name', unique=True)