code: def model_sample(self):
      return RHVAE(RHVAEConfig(input_dim=(1, 28, 28)))
  
imports: import os
  from copy import deepcopy
  import pytest
  import torch
  from pythae.customexception import ModelError
  from pythae.models import AE, RHVAE, VAE, AEConfig, RHVAEConfig, VAEConfig
  from pythae.trainers import BaseTrainer, BaseTrainerConfig
  from tests.data.custom_architectures import *
label_desc: Use image node_id 2 for calling the Test_Logging obj's underlying member method code with example usage: obj.model_sample() and returns: RHVAE