new pack and unpack for enhancedsend #189

Job	Run time
Integrations (Compare Hashes, integrations/comparehashes_test.py) / Compare Hashes	7m 34s
Integrations (Docker Compose, integrations/dockercompose_test.py) / Docker Compose	9m 53s
Integrations (Mainnet API Load, integrations/load_test.py, Linux-Large-1, true, true) / ${{ inputs.name }}	0s
Integrations (Regtest Scenarios, integrations/regtest/scenarios_test.py, true) / Regtest Scenarios	35s
Integrations (RSFetcher Test, integrations/rsfetcher_test.py) / RSFetcher Test	7m 43s
Integrations (Testnet4 Bootstrap And Catchup, integrations/testnet4_test.py) / Testnet4 Bootstrap And Catchup	8m 8s
Integrations (Testnet4 Rebuild, integrations/rebuild_test.py) / Testnet4 Rebuild	21m 53s
Integrations (Testnet4 Start and Shutdown, integrations/shutdown_test.py) / Testnet4 Start and Shutdown	8m 39s
	1h 4m 25s

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