code: def get_data(self):
          
          # NOTE: we assume that the "embed" option is used
          base64_data = self._json_data.get("fdData")
          if base64_data is None:
              return None
          else:
              # need to convert to bytes() with python 3
              return base64.decodestring(six.b(base64_data))
docs: Get the data associated with this filedata object
  
          :returns: Data associated with this object or None if none exists
          :rtype: str (Python2)/bytes (Python3) or None