chore(utils): add comments + cleanup util functions #34847

Job	Run time
setup	5m 10s
Shard (0) Unit Tests	9m 11s
integration-tests-packages	13m 17s
Shard (0) Module Integration Tests	10m 55s
Shard (0) HTTP Integration Tests	12m 32s
Shard (1) Unit Tests	5m 13s
Shard (1) Module Integration Tests	9m 38s
Shard (1) HTTP Integration Tests	9m 5s
unit-tests	1s
integration-tests-modules	1s
integration-tests-http	1s
	1h 15m 4s

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