code: def name(self):
      return "SampleConvNet"
  
file_path: opacus/examples/mnist.py
imports: import argparse
  import numpy
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.optim
  from opacus import PrivacyEngine
  from torchvision import datasets, transforms
  from tqdm import tqdm
label_desc: Use image node_id 3 for calling the SampleConvNet obj's underlying member method code with example usage: obj.name() and returns: str