code: def __init__(self, masked_with=-1):
      super().__init__()
      self.masked_with = masked_with
  
file_path: pyro/examples/cvae/baseline.py
imports: import copy
  from pathlib import Path
  import numpy
  import torch
  import torch.nn
  import torch.nn.functional
  from tqdm import tqdm
label_desc: Use image node_id 1 to create a new MaskedBCELoss object from inherited base classes: nn with example: obj = MaskedBCELoss(masked_with)