Document FormulaVersions.

This commit is contained in:
Markus Reiter 2020-08-17 06:09:57 +02:00
parent e5d72ecc6c
commit 3851087d01

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@ -2,6 +2,9 @@
require "formula"
# Helper class for traversing a formula's previous versions.
#
# @api private
class FormulaVersions
include Context