code: def __SendMediaBody(self, start, additional_headers=None):
          
          self.EnsureInitialized()
          if self.total_size is None:
              raise exceptions.TransferInvalidError(
                  'Total size must be known for SendMediaBody')
          body_stream = stream_slice.StreamSlice(
              self.stream, self.total_size - start)
  
          request = http_wrapper.Request(url=self.url, http_method='PUT',
                                         body=body_stream)
          request.headers['Content-Type'] = self.mime_type
          if start == self.total_size:
              # End of an upload with 0 bytes left to send; just finalize.
              range_string = 'bytes */%s' % self.total_size
          else:
              range_string = 'bytes %s-%s/%s' % (start, self.total_size - 1,
                                                 self.total_size)
  
          request.headers['Content-Range'] = range_string
          if additional_headers:
              request.headers.update(additional_headers)
  
          return self.__SendMediaRequest(request, self.total_size)
docs: Send the entire media stream in a single request.