writecap, readcap, metadata = e
precondition(isinstance(writecap, (str,type(None))), writecap)
precondition(isinstance(readcap, (str,type(None))), readcap)
-
+
# We now allow packing unknown nodes, provided they are valid
# for this type of directory.
child_node = self._create_and_validate_node(writecap, readcap, namex)