Improves deserialization efficiency for agents. #422

Job	Run time
Clippy	1m 19s
Build Example Application UIs (stocks_simulated/ui, npm install && npm run build)	15s
Code Coverage	25m 16s
Check (windows-latest)	2m 35s
Check (ubuntu-latest)	57s
Documentation	54s
Check (macos-latest)	1m 14s
Rustfmt	20s
Test (windows-latest)	5m 13s
Test (ubuntu-latest)	2m 50s
Test (macos-latest)	2m 45s
	43m 38s

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