refactor: Replace Object usage with strongly-typed implementations #38

Job	Run time
Run Dart Analysis Latest (stable) Downgrade	21s
Run Dart Analysis Downgrade	20s
Verify Dart Formatting (windows-latest, 3.3.0)	49s
Run Dart Analysis (windows-latest, 3.3.0)	40s
Verify Dart Formatting (ubuntu-latest, 3.3.0)	15s
Run Unit Tests (windows-latest, 3.3.0)	1m 3s
Verify Dart Formatting (macos-latest, 3.3.0)	21s
Run Unit Tests (ubuntu-latest, 3.3.0)	37s
Run Dart Analysis (windows-latest, stable)	40s
Run Unit Tests (macos-latest, 3.3.0)	1m 52s
Run Dart Analysis (ubuntu-latest, 3.3.0)	19s
Run Dart Analysis (ubuntu-latest, stable)	19s
Run Dart Analysis (macos-latest, 3.3.0)	26s
Run Dart Analysis (macos-latest, stable)	28s
	8m 30s

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