[Checkins] [zopefoundation/Products.ZCatalog] a7f401: Document via comment.

[Michael Howitz]

  Branch: refs/heads/icemac-patch-1
  Home:   https://github.com/zopefoundation/Products.ZCatalog
  Commit: a7f401b1474932347bb26797e4adc95176663d0f
      https://github.com/zopefoundation/Products.ZCatalog/commit/a7f401b1474932347bb26797e4adc95176663d0f
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-12-06 (Fri, 06 Dec 2019)

  Changed paths:
    M src/Products/ZCatalog/ZCatalog.py

  Log Message:
  -----------
  Document via comment.

Maybe it's time for type annotations 😛