input: def send_automated_email(recipient_emails: List[str], sender_email: str, password: str) -> None:
      """ Send an automated email to each address in the given list of recipient emails. 
      The function uses the sender's email and password to log in to an SMTP server 
      and send the email.
      >>> send_automated_email(["email1@example.com","email2@example.com"], 'example@gmail.com', 'example_password')
      """
output:     import smtplib
      from email.mime.text import MIMEText
      from email.mime.multipart import MIMEMultipart
  
      subject = "Automated Email"
      body = "This is an automated email sent using Python."
  
      for recipient in recipient_emails:
          msg = MIMEMultipart()
          msg['From'] = sender_email
          msg['To'] = recipient
          msg['Subject'] = subject
          msg.attach(MIMEText(body, 'plain'))
  
          with smtplib.SMTP('smtp.gmail.com', 587) as server:
              server.starttls()
              server.login(sender_email, password)
              server.sendmail(sender_email, recipient, msg.as_string())