code: def is_loaded(self):
      return self.loaded
  
file_path: Neuraxle/testing_neuraxle/test_data_container_batching.py
imports: import pytest
  from neuraxle.data_container import DACT, StripAbsentValues
  import numpy
label_desc: Use image node_id 3 for calling the LoadableItem obj's underlying member method code with example usage: obj.is_loaded() and returns: self