def METHOD_NAME(self, local_agg_model_params, client_index, grad, t_eff, weight=1.0):
    # Add params that needed to be reduces from clients
    # for name, param in model_params.items():
    #     if name not in local_agg_model_params:
    #         local_agg_model_params[name] = param * weight
    #     else:
    #         local_agg_model_params[name] += param * weight
    # local_agg_model_params[client_index]["grad"] = grad
    # local_agg_model_params[client_index]["t_eff"] = t_eff
    local_agg_model_params.append({
        "grad": grad, "t_eff": t_eff,
    })