Translate the raw item data from the DynamoDBConnection
        to the item object.

def from_raw_data(cls, item_raw):
        """Translate the raw item data from the DynamoDBConnection
        to the item object.

        """
        deserialized = {}
        for name, value in item_raw.items():
            attr = getattr(cls, name, None)
            if attr is None:
                continue
            deserialized[name] = attr.decode(value)
        return cls(**deserialized)