[BugFix] Tree make node fix

[rolo]

Description

Calling Tree.make_node was resulting in TypeError: Tree.__init__() got an unexpected keyword argument 'node'.

It looks as though it's because of a kwarg being passed as "node" instead of "node_data" at the end of the function so I renamed it. I added some tests to show this but it seemed a bit over the top to keep 3 separate tests for such a small thing so I combined them afterwards.

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I have read the CONTRIBUTION guide (required)
• My change requires a change to the documentation.
• I have updated the tests accordingly (required for a bug fix or a new feature).
• I have updated the documentation accordingly.

Thanks :)

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/rl/2839

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❌ 1 New Failure, 27 Pending

As of commit 10981d4 with merge base 73c7b0a ():

NEW FAILURE - The following job has failed:

• Unit-tests on Linux / tests-olddeps (3.8, 11.6) / linux-job (gh)
  RuntimeError: Command docker exec -t 50630cb5b02e58101a0cdab80e4979b01279112c18c614dc0fdf45bb00dbc847 /exec failed with exit code 1

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[vmoens]

LGTM
cc @kurtamohler

[vmoens]

@rolo you just need to run the linter
https://github.com/pytorch/rl/blob/main/CONTRIBUTING.md

[rolo]

@rolo you just need to run the linter https://github.com/pytorch/rl/blob/main/CONTRIBUTING.md

Done.

Apologies. I did see them flagged, but as they were in unrelated files I thought I should leave them.