Autocomplete improvements #910

Job	Run time
lint	30s
build	28s
cleanup_buckets	23s
test (ubuntu-latest, 3.7)	6m 40s
test-linux-bundle	1m 44s
test-windows-bundle (windows-2019)	2m 54s
test (ubuntu-latest, 3.8)	46s
test-docker	6m 14s
test-windows-bundle (windows-latest)	3m 6s
test (ubuntu-latest, 3.9)	52s
test (ubuntu-latest, 3.10)	46s
test (ubuntu-latest, 3.11)	6m 8s
test (ubuntu-latest, 3.12)	59s
test (ubuntu-latest, pypy-3.10-nightly)	9m 11s
test (macos-latest, 3.7)	6m 2s
test (macos-latest, 3.8)	1m 36s
test (macos-latest, 3.9)	1m 1s
test (macos-latest, 3.10)	1m 10s
test (macos-latest, 3.11)	7m 9s
test (macos-latest, 3.12)	1m 40s
test (windows-latest, 3.7)	6m 56s
test (windows-latest, 3.8)	2m 4s
test (windows-latest, 3.9)	1m 41s
test (windows-latest, 3.10)	1m 26s
test (windows-latest, 3.11)	8m 24s
test (windows-latest, 3.12)	2m 0s
doc	49s
	1h 22m 39s

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