old_contents: from .responses import handler
  
  urls = {
      "https?://dynamodb.us-east-1.amazonaws.com/": handler,
  }
  
new_contents: from .responses import handler
  
  
  def sts_handler(uri, body, headers):
      return GET_SESSION_TOKEN_RESULT
  
  urls = {
      "https?://dynamodb.us-east-1.amazonaws.com/": handler,
      "https?://sts.amazonaws.com/": sts_handler,
  }
  
  
  GET_SESSION_TOKEN_RESULT = """
  <GetSessionTokenResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
   <GetSessionTokenResult>
   <Credentials>
   <SessionToken>
   AQoEXAMPLEH4aoAH0gNCAPyJxz4BlCFFxWNE1OPTgk5TthT+FvwqnKwRcOIfrRh3c/L
   To6UDdyJwOOvEVPvLXCrrrUtdnniCEXAMPLE/IvU1dYUg2RVAJBanLiHb4IgRmpRV3z
   rkuWJOgQs8IZZaIv2BXIa2R4OlgkBN9bkUDNCJiBeb/AXlzBBko7b15fjrBs2+cTQtp
   Z3CYWFXG8C5zqx37wnOE49mRl/+OtkIKGO7fAE
   </SessionToken>
   <SecretAccessKey>
   wJalrXUtnFEMI/K7MDENG/bPxRfiCYzEXAMPLEKEY
   </SecretAccessKey>
   <Expiration>2011-07-11T19:55:29.611Z</Expiration>
   <AccessKeyId>AKIAIOSFODNN7EXAMPLE</AccessKeyId>
   </Credentials>
   </GetSessionTokenResult>
   <ResponseMetadata>
   <RequestId>58c5dbae-abef-11e0-8cfe-09039844ac7d</RequestId>
   </ResponseMetadata>
  </GetSessionTokenResponse>"""
  
subject: add sts to dynamo for boto 2.5 backwards compat