Keras interface #2266

Job	Run time
Format	22s
Distribution build	32s
Check Python 3.8 on ubuntu-latest	14m 35s
Check Python 3.8 on macos-latest	20m 50s
Check Python 3.8 on windows-latest	21m 41s
Check Python 3.9 on ubuntu-latest	12m 9s
Check Python 3.9 on macos-latest	23m 37s
Check Python 3.9 on windows-latest	23m 30s
Check Python 3.10 on ubuntu-latest	9m 19s
Check Python 3.10 on macos-latest	18m 22s
Check Python 3.10 on windows-latest	10m 52s
	2h 35m 49s

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