input: 
  def send_automated_emails(recipient_emails: List[str], sender_email: str, password: str) -> None:
      """ Sends an automated email to each email address in the list.
      >>> send_automated_emails(["email1@example.com","email2@example.com"], 'sender@example.com', 'sender_password')
      Email sent successfully.
      Email sent successfully.
      """
      
  import smtplib
  
  for email in recipient_emails:
      with smtplib.SMTP('smtp.gmail.com', 587) as server:
          server.ehlo()
          server.starttls()
          server.login(sender_email, password)
  
          subject = 'Automated Email from Program'
          message = 'Message body'
   
          server.sendmail(sender_email, email, 'Subject: ' + subject + '\n\n' + message)
          server.quit()
          print('Email sent successfully.')
  
output:     
  import smtplib
  
  for email in recipient_emails:
      with smtplib.SMTP('smtp.gmail.com', 587) as server:
          server.ehlo()
          server.starttls()
          server.login(sender_email, password)
  
          subject = 'Automated Email from Program'
          message = 'Message body'
   
          server.sendmail(sender_email, email, 'Subject: ' + subject + '\n\n' + message)
          server.quit()
          print('Email sent successfully.')
  