--- /dev/null
+# Copyright (C) 2018 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+
+from collections import namedtuple
+
+MakeRule = namedtuple("MakeRule", ["name", "dep_literals", "dep_files", "output_file", "cmds"])
+
+MakeFilesVar = namedtuple("MakeFilesVar", ["name", "files"])
+
+MakeStringVar = namedtuple("MakeStringVar", ["name", "content"])