160     def __init__(self, item_type, name=None, **kwargs):  argument
162         self.item_type = self._format_item_type(item_type)
164     def _format_item_type(self, item_type):  argument
165         if inspect.isclass(item_type):
166             return item_type(None)
167         return item_type
228     def _format_item_type(self, item_type):  argument
231         if isinstance(item_type, dict):
232             if len(item_type) != 1:
236             key_type, value_type = list(item_type.items())[0]
238         return Any(None), superfmt(item_type)
241         key_type, value_type = self.item_type
253         return [self.item_type.convert(item) for item in data]
283     def _format_item_type(self, item_type):  argument
286         if isinstance(item_type, (tuple, list)):
287             return [superfmt(t) for t in item_type]
288         return (superfmt(item_type),)
291         if len(data) != len(self.item_type):
293                 "Expected %i items got %i" % (len(self.item_type), len(data))
296             item_type.convert(value) for item_type, value in zip(self.item_type, data)
304         return self.item_type.convert(data)