feat: Support for hiding implementation signature #544

Job	Run time
quality	48s
exclude-test-jobs	4s
tests (ubuntu-latest, 3.9, lowest-direct)	31s
tests (ubuntu-latest, 3.9, highest)	34s
tests (ubuntu-latest, 3.10, highest)	29s
tests (ubuntu-latest, 3.12, lowest-direct)	33s
tests (ubuntu-latest, 3.11, highest)	27s
tests (ubuntu-latest, 3.11, lowest-direct)	38s
tests (ubuntu-latest, 3.10, lowest-direct)	30s
tests (ubuntu-latest, 3.12, highest)	36s
tests (ubuntu-latest, 3.13, lowest-direct)	35s
tests (ubuntu-latest, 3.13, highest)	31s
tests (macos-latest, 3.9, highest)	49s
tests (macos-latest, 3.10, highest)	49s
tests (ubuntu-latest, 3.14, lowest-direct)	55s
tests (ubuntu-latest, 3.14, highest)	59s
tests (macos-latest, 3.11, highest)	31s
tests (macos-latest, 3.12, highest)	31s
tests (macos-latest, 3.13, highest)	32s
tests (macos-latest, 3.14, highest)	1m 5s
tests (windows-latest, 3.10, highest)	52s
tests (windows-latest, 3.11, highest)	57s
tests (windows-latest, 3.9, highest)	1m 2s
tests (windows-latest, 3.12, highest)	50s
tests (windows-latest, 3.14, highest)	5m 9s
tests (windows-latest, 3.13, highest)	50s
	22m 7s

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