Added missing include #598

Job	Run time
build_conda (windows-latest, conda, true)	6m 45s
build_pip (macos-latest, pip, true)	2m 59s
build_conda (ubuntu-latest, conda, true)	7m 24s
build_pip (ubuntu-latest, pip, false)	11m 38s
build_conda (macos-latest, conda, true)	6m 14s
build_pip (ubuntu-latest, pip, true)	11m 7s
build_pip (windows-latest, pip, true)	4m 8s
	50m 15s

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