Merge pull request #580 from SpiNNakerManchester/typing #1870

Job	Run time
call / validate (ubuntu-latest, 3.12, validate)	2m 59s
call / checks (ubuntu-latest, 3.13)	1m 56s
call / tests (windows-latest, 3.12, tests)	2m 1s
call / checks (ubuntu-24.04, 3.11)	1m 37s
call / tests (windows-2019, 3.9, tests)	2m 4s
call / checks (ubuntu-latest, 3.10)	2m 2s
call / tests (macos-latest, 3.13, tests)	53s
call / checks (ubuntu-22.04, 3.9)	2m 1s
call / tests (macos-13, 3.9, tests)	2m 22s
call / checks (ubuntu-20.04, 3.8)	2m 4s
	19m 59s

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