ZQ

在使用协程时返回值可为空

2

在我使用协程时，我希望能在接口返回空值时能获取到空值，但是我在实际运行过程中无法获取，同时报错 `Response from XXX was null but response body type was declared as non-null ` 然后再查看源码时发现，[HttpServiceMethod](https://github.com/square/retrofit/blob/master/retrofit/src/main/java/retrofit2/HttpServiceMethod.java)中，没有调用awaitNullable的逻辑，希望能够加上这个