code: def check(FOLDER):
      if not os.path.exists(FOLDER):
          os.makedirs(FOLDER)
  
file_path: gluonts/src/gluonts/nursery/robust-mts-attack/sparse_layer.py
imports: import torch
  import torch.nn
  import torch.nn.functional
  import torch.distributions
  from torch.distributions import Normal
  from abc import ABC
  import numpy
  import warnings
  import os, pickle
label_desc: Use image node_id 3 for calling a global function with example usage: check(FOLDER) without return types