Merge pull request #288 from SpiNNakerManchester/type_fix #1096

Job	Run time
call / validate (ubuntu-latest, 3.12, validate)	2m 59s
call / checks (ubuntu-latest, 3.13)	1m 12s
call / tests (windows-latest, 3.12, tests)	1m 12s
call / checks (ubuntu-24.04, 3.11)	1m 12s
call / checks (ubuntu-latest, 3.10)	1m 12s
call / tests (windows-2019, 3.9, tests)	1m 8s
call / checks (ubuntu-22.04, 3.9)	1m 6s
call / tests (macos-latest, 3.13, tests)	36s
call / checks (ubuntu-20.04, 3.8)	1m 14s
call / tests (macos-13, 3.9, tests)	42s
	12m 33s

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