Update dependency pytype to v2019.6.28
Update dependency pytype to v2019.6.28

REANNZ/faucet,trungdtbk/faucet,anarkiwi/faucet,faucetsdn/faucet,gizmoguy/faucet,anarkiwi/faucet,trungdtbk/faucet,REANNZ/faucet,shivarammysore/faucet,shivarammysore/faucet,gizmoguy/faucet,mwutzke/faucet,faucetsdn/faucet,mwutzke/faucet