code: def setUp(self):
      # delete the outputFolder
      if os.path.isdir(self.outputFolder):
          rmtree(self.outputFolder)
  
file_path: NeuroNER/test/test_main.py
imports: import os
  from shutil import rmtree
  import unittest
  from neuroner import neuromodel
label_desc: Use image node_id 1 for calling the TestMain obj's underlying member method code with example usage: obj.setUp() without return types