def __init__(self, author=None, category=None, content=None,
               contributor=None, atom_id=None, link=None, published=None,
               rights=None, source=None, summary=None, control=None,
               title=None, updated=None,
               extended_property=None, batch_operation=None, batch_id=None,
               batch_status=None,
               extension_elements=None, extension_attributes=None, text=None):
    gdata.BatchEntry.__init__(self, author=author, category=category,
                              content=content,
                              atom_id=atom_id, link=link, published=published,
                              batch_operation=batch_operation,
                              batch_id=batch_id, batch_status=batch_status,
                              title=title, updated=updated)
    self.extended_property = extended_property and []
dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/contacts/__init__.py/GroupEntry.__init__/operator `or` -> `and`