Results 3 issues of Roy

Hi, I have found some bugs in `MQTT+s3` module whenI tried to training by partial clients per round. ## **Bug 1: Object of type int64 is not JSON serializable** ```...

Please see #232 ## **all clients (Total 4 ranks) participating, new version (purple) vs old version (green), faster convergence** ![test1](https://user-images.githubusercontent.com/27721492/170436752-f400af5e-6e52-4857-bf2f-1e06e277beca.png) ## **2 clients per round vs all clients (Total 4...

Hi, when I try to run "CNN + MNIST" at the `mqtt_s3_fedavg_mnist_lr_example`, I found a bug caused by the shape of input tensor. ### Error ``` Traceback (most recent call...