BlockList
The BlockList. 
                
The size of the blob, in bytes.
            
CommittedBlocks.
            
The media type of the body of the response. For the
             GetBlockListAsync
            operation this is 'application/xml'.
            
The  ETag contains a value that you can use to
            perform operations conditionally. If the request version is
            2011-08-18 or newer, the  ETag value will be in quotes.
            
Gets the date and time the container was last modified.  Any
            operation that modifies the blob, including an update of the
            blob's metadata or properties, changes the last-modified time of
            the blob.
            
UncommittedBlocks.