[Improvement] Adding types to function/method parameters to help with static analysis

[vrdmr]

Investigative information

Please provide the following:

[Hazhzeng]

Thanks Varad, this is related to the bug in PR #632, setting the GRPC message to None, which limits the GRPC message size to (4MB).

Also, @Hazhzeng remember to add an E2E test scenario to test a large blob scenario (100MB).