def setup(self):
data = yaml.load(self.value)
self.stash['tiddlers'] = {}
for title in data:
tiddler = Tiddler(title)
tiddler.modfied = data.get('modified', '')
tiddler.tags = data.get('tags', [])
tiddler.text = data.get('text', '')
tiddler.modifier = data.get('modifier', '')
self.stash['tiddlers'][title] = tiddler
