Fix serialization_batch test #7815

Job	Run time
Typos Check	6s
Lints and doc tests on ubuntu-latest	8m 15s
Unit tests on ubuntu-latest	10m 13s
Lints and doc tests on windows-latest	12m 33s
Unit tests on windows-latest	21m 35s
Lints and doc tests on macos-13	12m 49s
Unit tests on macos-13	16m 50s
Lints and doc tests on macos-14	4m 45s
Unit tests on macos-14	8m 51s
Memory leak checks	2m 0s
CI status checks	1s
	1h 37m 58s

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