# 2.5.15.4. BuildSetCombinedStatusGenerator

class buildbot.reporters.BuildSetCombinedStatusGenerator

This report generator sends a message about a buildset.

Message formatter is invoked only once for all builds in the buildset.

It is very similar to `BuildSetCombinedStatusGenerator` but invokes message formatters for each matching build in the buildset. The collected messages are then joined and sent as a single message.

A buildset without any builds is useful as a means to report to code review system that a particular code version does not need to be tested. For example in cases when a pull request is updated with the only difference being commit message being changed.

The following parameters are supported:

`message_formatter`

  (instance of `reporters.MessageFormatter`) This is an instance of the `reporters.MessageFormatter` class that will be used to generate message for the buildset.