code: def train(self):
      return
  
imports: import csv
  from deepneuro.models.cost_functions import cost_function_dict
  from deepneuro.utilities.util import add_parameter, nifti_splitext
  from deepneuro.load.load import load
label_desc: Use image node_id 5 for calling the DeepNeuroModel obj's underlying member method code with example usage: obj.train() without return types