src/vs/workbench/contrib/codeEditor/browser/accessibility/accessibility.ts/AccessibilityHelpController/show
class AccessibilityHelpController:	public show(): void {
		if (!this._widget) {
			this._widget = this._register(this.instantiationService.createInstance(AccessibilityHelpWidget, this._editor));
		}
		this._widget.show();
	}