Fix processing chain interface #727

Job	Run time
run (macos-13, 14.2, iOS Simulator,OS=17.2,name=iPhone 14 Pro)	30m 14s
run (macos-13, 14.2, macOS)	5m 11s
run (macos-13, 14.2, macOS,variant=Mac Catalyst)	5m 52s
run (macos-14, 15.4, iOS Simulator,OS=17.5,name=iPhone 15 Pro)	6m 54s
run (macos-14, 15.4, macOS)	4m 10s
run (macos-14, 15.4, macOS,variant=Mac Catalyst)	4m 4s
run (macos-14, 15.4, visionOS Simulator,name=Apple Vision Pro)	6m 16s
run (macos-14, 15.4, tvOS Simulator,name=Apple TV)	6m 2s
run (macos-15, 16.1, iOS Simulator,OS=18.1,name=iPhone 16 Pro)	7m 14s
run (macos-15, 16.1, macOS)	4m 11s
run (macos-15, 16.1, macOS,variant=Mac Catalyst)	4m 42s
	1h 24m 50s

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