code: def is_latent_variable(args):
      return args.task == constants.LATENT_VARIABLE_TASK
  
imports: import os
  import shutil
  import tempfile
  from typing import Dict, NamedTuple, Optional
  import numpy
  import torch
  from fairseq import data, tokenizer
  from fvcore.common.file_io import PathManager
  from pytorch_translate import constants
  from pytorch_translate.data import dictionary
label_desc: Use image node_id 3 for calling a global function with example usage: is_latent_variable(args) and returns: unknown