title: AWS.CloudWatch constructor set batch_size and batch_limit
body: <p>I have a node/express application that logs to cloudwatch.</p>
  <p>I want to be able to set the cloudwatch logs batch_limit and batch_size parameters in the
  AWS.CloudWatch() constructor.</p>
  <pre><code>var cloudwatch = new AWS.CloudWatch();
  </code></pre>
  <p>Any help will be greatly appreciated.</p>