nio-blocks/mixins — pull request #10 by cloudformdesign (2014-11-10 16:01:39+00:00)
Title: Groupby2

Main purpose is to add kwargs to `for_each_group` to allow needed functionality in the counter.

Please review the tests, I have remove a test (simply returning at the beggining) and have commented about the test. The test fails, and I don't see how it wouldn't. I have left comments.