format code

lib/src/fluwx_class.dart

@@ -125,9 +125,8 @@ Future isWeChatInstalled() async {
   return await _channel.invokeMethod("isWeChatInstalled");
 }
 
-
-
-Future pay({@required String appId,
+Future pay(
+    {@required String appId,
     @required String partnerId,
     @required String prepayId,
     @required String packageValue,
@@ -136,7 +135,7 @@ Future pay({@required String appId,
     @required String sign,
     String signType,
     String extData}) async {
-  return await _channel.invokeMethod("payWithFluwx",{
+  return await _channel.invokeMethod("payWithFluwx", {
     "appId": appId,
     "partnerId": partnerId,
     "prepayId": prepayId,