code: def generate_output_directory(self):
      self.output_directory = os.path.abspath(self.output_directory)
  
      if not os.path.exists(self.output_directory):
          os.makedirs(self.output_directory)
  
      return
  
imports: import os
  import csv
  import numpy
  from collections import defaultdict
  from deepneuro.utilities.conversion import save_data
  from deepneuro.utilities.util import add_parameter, replace_suffix, nifti_splitext, additional_kwargs
  from deepneuro.utilities.visualize import check_data
label_desc: Use image node_id 7 for calling the Output obj's underlying member method code with example usage: obj.generate_output_directory() without return types