Pre-defined groups

I have a couple of tests that depend on each other. I am using `pytest-dependency` to define the relationships. Is there anyway to make sure these tests are always in the same group? One could define the buckets/groups, assign the tests that depend on each other to one of the groups and then fill the rest with the splitting algorithms.

No files, tests, or entry points are named. Start by reviewing how pytest-split assigns tests to sub-suites and how pytest-dependency exposes relationships; done means dependent tests stay in the same predefined group while remaining tests are still distributed by the splitting algorithms.

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