class_docstr: Tests for shared/alert_table.py
docstr: Alert Table - Update Retry Outputs
docstr_tok: ["Alert","Table","-","Update","Retry","Outputs"]
code: def test_update_sent_outputs(self):
      """Alert Table - Update Retry Outputs"""
      alert = self.alerts[0]
      alert.sent_outputs = {"aws-s3:test-bucket"}
      self.alert_table.update_sent_outputs(alert)
  
imports: from datetime import datetime
  import os
  from botocore.exceptions import ClientError
  from mock import ANY, MagicMock, patch
  from moto import mock_dynamodb2
  from nose.tools import assert_equal, assert_raises
  from streamalert.shared import alert, alert_table
  from tests.unit.helpers.aws_mocks import setup_mock_alerts_table
label_desc: Use image node_id 12 for calling the TestAlertTable obj's underlying member method code with example usage: obj.test_update_sent_outputs() without return types