18 files declare their use of SearchInterface in Search API Autocomplete 8

AccessTest.php in tests/src/Unit/AccessTest.php

AutocompleteController.php in src/Controller/AutocompleteController.php

AutocompleteHelper.php in src/Utility/AutocompleteHelper.php

AutocompleteHelperInterface.php in src/Utility/AutocompleteHelperInterface.php

CustomScript.php in src/Plugin/search_api_autocomplete/suggester/CustomScript.php

PagesIntegrationTest.php in tests/src/FunctionalJavascript/PagesIntegrationTest.php

PluginBase.php in src/Plugin/PluginBase.php

PluginHelper.php in src/Utility/PluginHelper.php

PluginHelperInterface.php in src/Utility/PluginHelperInterface.php

PluginInterface.php in src/Plugin/PluginInterface.php

Search.php in src/Entity/Search.php

SearchCrudTest.php in tests/src/Kernel/SearchCrudTest.php

search_api_autocomplete_test_hooks.search_api_autocomplete.inc in tests/search_api_autocomplete_test_hooks/search_api_autocomplete_test_hooks.search_api_autocomplete.inc

Implements all Search API Autocomplete hooks, for testing purposes.

Server.php in src/Plugin/search_api_autocomplete/suggester/Server.php

SuggesterInterface.php in src/Suggester/SuggesterInterface.php

SuggesterPluginBase.php in src/Suggester/SuggesterPluginBase.php

TestsHelper.php in src/Tests/TestsHelper.php

TestSuggester.php in tests/search_api_autocomplete_test/src/Plugin/search_api_autocomplete/suggester/TestSuggester.php