add dispatch to avoid method ambiguity #1447

Job	Run time
test (Core, 1, ubuntu-latest)	36m 53s
test (Core, 1, macos-latest)	14m 36s
test (Core, 1, windows-latest)	45m 47s
test (Downstream, 1, ubuntu-latest)	11m 43s
test (Downstream, 1, macos-latest)	6m 37s
test (Downstream, 1, windows-latest)	14m 6s
test (Misc, 1, ubuntu-latest)	13m 58s
test (Misc, 1, macos-latest)	9m 41s
test (Misc, 1, windows-latest)	24m 24s
test (Wrappers, 1, ubuntu-latest)	11m 44s
test (Wrappers, 1, macos-latest)	7m 34s
test (Wrappers, 1, windows-latest)	20m 6s
	3h 37m 9s

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