@classmethod
  @gen.coroutine
  def _FormatAlertEmail(cls, client, recipient_id, viewpoint, activity):
    if activity.name == 'share_new' or activity.name == 'add_followers':
      email_args = yield AlertManager._FormatConversationEmail(client, recipient_id, viewpoint, activity)
    else:
      email_args = None

    raise gen.Return(email_args)
Gets the arguments to the email that will be sent to web-only customers who follow the
dataset/ETHPy150Open viewfinderco/viewfinder/backend/op/alert_manager.py/AlertManager._FormatAlertEmail