title: Lambda get image from s3
body: <p>I am trying to get an image from my S3 bucket and return it for use in my API gateway.
  Permissions are set correctly.</p>
  
  <pre><code> import boto3
  
  s3 = boto3.resource('s3')
  
  def handler(event, context):
     image = s3.meta.client.download_file('mybucket', 'email-sig/1.png', '/tmp/1.png')
     return image
  </code></pre>
  
  <p>however I am getting a null return and cannot seem to figure out how to get the image. Is this the correct approach, and why is it not returning my image.</p>