def METHOD_NAME(self, mock_send):
    mock_send.return_value = "notified"
    call_command("send_stale_notifications")
    self.assertEqual(mock_send.call_count, 1)
    call_command(
        "send_stale_notifications", "--add-email", "fake@fake.com"
    )
    self.assertEqual(mock_send.call_count, 2)
    self.assertTrue(mock_send.called_with(add_email=["fake@fake.com"]))