src/vs/workbench/contrib/welcomeWalkthrough/common/walkThroughContentProvider.ts/WalkThroughSnippetContentProvider/constructor
class WalkThroughSnippetContentProvider:	constructor(
		@ITextModelService private readonly textModelResolverService: ITextModelService,
		@ILanguageService private readonly languageService: ILanguageService,
		@IModelService private readonly modelService: IModelService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
	) {
		this.textModelResolverService.registerTextModelContentProvider(Schemas.walkThroughSnippet, this);
	}