input: Write a python function to send an email to multiple recipients using the smtplib module.
  assert send_email(['recipient1@mail.com', 'recipient2@mail.com'], 'your_email_address', 'your_password', 'Subject: Test\n\nThis is a test message.')==True
  assert send_email(['recipient3@mail.com'], 'your_email_address', 'your_password', 'Subject: Another Test\n\nAnother test message.')==True
output: import smtplib
  
  def send_email(recipients, sender_email, sender_password, message):
      try:
          with smtplib.SMTP('smtp.gmail.com', 587) as server:
              server.starttls()
              server.login(sender_email, sender_password)
              for recipient in recipients:
                  server.sendmail(sender_email, recipient, message)
          return True
      except Exception as e:
          return False