Fix typing now that code is tuple of frame(s)

[ntabris]

Return type of _get_computation_code was changed from str to tuple[str] in #7656.

Whatever that returns gets sent to scheduler.update_graph:

distributed/distributed/client.py

Lines 3102 to 3114 in 515dffe

	"op": "update-graph",
	"graph_header": header,
	"graph_frames": frames,
	"keys": list(map(stringify, keys)),
	"internal_priority": internal_priority,
	"submitting_task": getattr(thread_state, "key", None),
	"fifo_timeout": fifo_timeout,
	"actors": actors,
	"code": self._get_computation_code(
	nframes=dask.config.get(
	"distributed.diagnostics.computations.nframes"
	)
	),

So type annotation on code argument is now incorrect. This fixes that.

[github-actions]

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

       26 files  ±0         26 suites  ±0   13h 44m 35s ⏱️ - 28m 39s
  3 551 tests ±0    3 443 ✔️ +4     106 💤 ±0  2 ❌  - 4 
44 923 runs  ±0  42 680 ✔️ +3  2 241 💤 +2  2 ❌  - 5 

For more details on these failures, see this check.

Results for commit b03a631. ± Comparison against base commit 515dffe.

[jrbourbeau]

Thanks @ntabris! Any idea why this is currently passing our mypy check?

[ntabris]

Any idea why this is currently passing our mypy check?

I'm assuming typing doesn't get checked across RPC boundary, i.e., send_to_scheduler with "op" set.

[jrbourbeau]

Hmm that's a shame. Oh well, I agree that this is correct now. Thanks for fixing!