code: def rhvae_config(self):
      return 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 1 for calling the Test_Sanity_Checks obj's underlying member method code with example usage: obj.rhvae_config() and returns: RHVAEConfig