Fix autocompletion not working with ModelHubMixin #6913

Job	Run time
build-windows (3.8)	5m 33s
build-ubuntu (3.8, Repository only)	1m 37s
build-ubuntu (3.8, Everything else)	3m 19s
build-ubuntu (3.13, Repository only)	1m 56s
build-ubuntu (3.13, Everything else)	4m 43s
build-ubuntu (3.13, lfs)	55s
build-ubuntu (3.8, fastai)	1m 26s
build-ubuntu (3.10, fastai)	1m 5s
build-ubuntu (3.8, tensorflow)	54s
build-ubuntu (3.10, tensorflow)	52s
build-ubuntu (3.8, Python 3.8, torch_1.11)	1m 32s
build-ubuntu (3.12, torch_latest)	59s
	24m 51s

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