code: def main():
      # random seed (create the same data)
      np.random.seed(10)
  
      create_data_files(
          Dim, [3.0], "Train_cntk_text.txt", "Test_cntk_text.txt", True
      )
      create_data_files(
          Dim,
          [[3.0], [3.0, 0.0]],
          "Train-3Classes_cntk_text.txt",
          "Test-3Classes_cntk_text.txt",
          False,
      )
  
imports: import numpy
  from sklearn.utils import shuffle
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types