fix: periodic polling sample (#183) #651

Job	Run time
build-lint-test (3.9, ubuntu-latest)	5m 17s
build-lint-test (3.9, macos-intel)	5m 44s
build-lint-test (3.9, macos-arm)	5m 29s
build-lint-test (3.9, windows-latest)	5m 56s
build-lint-test (3.12, ubuntu-latest)	5m 21s
build-lint-test (3.12, macos-intel)	5m 59s
build-lint-test (3.12, macos-arm)	5m 24s
build-lint-test (3.12, windows-latest)	5m 57s
	45m 7s

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