Remove duplicate import #398

Job	Run time
Lint (Python 3.10 on ubuntu-latest)	1m 7s
Test (Python 3.8 on macos-latest)	1m 57s
Test (Python 3.9 on macos-latest)	1m 53s
Test (Python 3.10 on macos-latest)	1m 43s
Test (Python 3.11 on macos-latest)	2m 7s
Test (Python 3.12 on macos-latest)	2m 19s
Test (Python 3.8 on ubuntu-latest)	53s
Test (Python 3.9 on ubuntu-latest)	49s
Test (Python 3.10 on ubuntu-latest)	1m 10s
Test (Python 3.11 on ubuntu-latest)	1m 5s
Test (Python 3.12 on ubuntu-latest)	59s
Test (Python 3.8 on windows-latest)	3m 16s
Test (Python 3.9 on windows-latest)	3m 1s
Test (Python 3.10 on windows-latest)	3m 5s
Test (Python 3.11 on windows-latest)	2m 46s
Test (Python 3.12 on windows-latest)	2m 31s
	30m 41s

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