new_contents: 
  import os
  from piwho import recognition
  
  speakers = ['Aditya','Ankit','Abhishek','Abhinav','Rishi','Mansi','Shivangi','Devika','Kranti']
  
  data_folders = ['sp_Aditya','sp_Ankit','sp_Abhishek','sp_Abhinav','sp_Rishi','sp_Mansi','sp_Shivangi','sp_Devika','sp_Kranti']
  
  folder_path = '/home/pi/train_data/'
  
  def train():
      recog = recognition.SpeakerRecognizer()
      recog.debug = True
      for i in range(len(speakers)):
          recog.speaker_name = speakers[i]
          path =  os.path.join(folder_path,data_folders[i])
          print("speaker name: {} speaker_data: {}".format(speakers[i], data_folders[i]))
          recog.train_new_data(path)
  
  if __name__ == "__main__":
      train()
  
subject: add batch train example