Adjust docstring in client.py #1066

Job	Run time
run-test-suite (ubuntu-latest, 3.9, 9.4)	10m 39s
run-test-suite (ubuntu-22.04, 3.7, 9.1)	8m 48s
run-test-suite (ubuntu-latest, 3.13, latest)	9m 44s
run-test-suite (ubuntu-latest, 3.9, latest)	10m 16s
	39m 27s

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