def _set(self, key, value, identity='<STR_LIT:image>'):
if identity == '<STR_LIT:image>':<EOL><INDENT>s = serialize_image_file(value)<EOL><DEDENT>else:<EOL><INDENT>s = serialize(value)<EOL><DEDENT>self._set_raw(add_prefix(key, identity), s)<EOL>
Serializing, prefix wrapper for _set_raw