code: def get_email_link(email, value=None):
      
      if not email:
          return ""
      mailto = 'mailto:{}'.format(email)
      link_value = value and value or email
      return get_link(mailto, link_value)
docs: Returns a well-formed link to an email address. If email is None/empty,
      returns an empty string
      :param email: email address
      :param link_text: text to be displayed. If None, the email itself is used
      :return: a well-formatted html anchor