src/vs/workbench/contrib/inlayHints/browser/inlayHintsAccessibilty.ts/InlayHintsAccessibility/constructor
class InlayHintsAccessibility:	constructor(
		private readonly _editor: ICodeEditor,
		@IContextKeyService contextKeyService: IContextKeyService,
		@IAudioCueService private readonly _audioCueService: IAudioCueService,
		@IInstantiationService private readonly _instaService: IInstantiationService,
	) {
		this._ariaElement = document.createElement('span');
		this._ariaElement.style.position = 'fixed';
		this._ariaElement.className = 'inlayhint-accessibility-element';
		this._ariaElement.tabIndex = 0;
		this._ariaElement.setAttribute('aria-description', localize('description', "Code with Inlay Hint Information"));

		this._ctxIsReading = InlayHintsAccessibility.IsReading.bindTo(contextKeyService);
	}