Refactor the the ParsedTypeDocstring #2756

Job	Run time
unit_tests (pypy-3.9, ubuntu-latest)	1m 7s
unit_tests (pypy-3.9, windows-latest)	52s
unit_tests (pypy-3.9, macos-latest)	1s
unit_tests (pypy-3.10, ubuntu-latest)	1m 7s
unit_tests (pypy-3.10, windows-latest)	53s
unit_tests (pypy-3.10, macos-latest)	1s
unit_tests (3.9, ubuntu-latest)	58s
unit_tests (3.9, windows-latest)	52s
unit_tests (3.9, macos-latest)	1m 7s
unit_tests (3.10, ubuntu-latest)	1m 1s
unit_tests (3.10, windows-latest)	1m 1s
unit_tests (3.10, macos-latest)	1m 10s
unit_tests (3.11, ubuntu-latest)	1m 8s
unit_tests (3.11, windows-latest)	53s
unit_tests (3.11, macos-latest)	53s
unit_tests (3.12, ubuntu-latest)	1m 5s
unit_tests (3.12, windows-latest)	52s
unit_tests (3.12, macos-latest)	57s
unit_tests (3.13, ubuntu-latest)	1m 7s
unit_tests (3.13, windows-latest)	46s
unit_tests (3.13, macos-latest)	52s
GHA Required	2s
release	0s
	18m 45s

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