Not generating syntax examples for some blob params

[jamesls]

I believe this is if a struct param has a single blob param you don't get any help, for example:

$ aws ses send-raw-email help
...
       --raw-message (structure)
              The  raw  text  of  the  message.  The client is responsible for
              ensuring the following:

       o Message must contain a header and a body, separated by a blank  line.

       o All required header fields must be present.

       o Each part of a multipart MIME message must be formatted properly.

       o MIME content types must be among those supported by Amazon SES. Refer
         to the Amazon SES Developer Guide for more details.

       o Content must be base64-encoded, if MIME requires it.

       data (blob)
         The raw data of the message. The client must ensure that the  message
         format  complies with Internet email standards regarding email header
         fields, MIME types, MIME encoding, and  base64  encoding  (if  neces-
         sary).

         For  more  information,  go  to  the`Amazon  SES  Developer  Guide <-
         http://docs.amazonwebservices.com/ses/latest/DeveloperGuide>`_ .

         JSON Parameter Syntax

         {

         }