src/vs/editor/contrib/parameterHints/browser/parameterHints.ts/TriggerParameterHintsAction/run
class TriggerParameterHintsAction:	public run(accessor: ServicesAccessor, editor: ICodeEditor): void {
		const controller = ParameterHintsController.get(editor);
		if (controller) {
			controller.trigger({
				triggerKind: languages.SignatureHelpTriggerKind.Invoke
			});
		}
	}