code: def batch_image(self):
      md = ImageModality()
      md.build(id_map=None)
  
      try:
          md.batch_image(batch_ids=None)
      except:
          raise NotImplementedError
  
imports: import unittest
  from cornac.data import ImageModality
label_desc: Use image node_id 2 for calling the TestImageModality obj's underlying member method code with example usage: obj.batch_image() without return types