* allocated char *.
*
* @param py_obj The dictionary to probe.
- * @param attr Key of the item to retrieve.
- * @param outstr ptr to char * storage to be filled in.
+ * @param key Key of the item to retrieve.
+ * @param outstr Pointer to char * storage to be filled in.
*
* @return SRD_OK upon success, a (negative) error code otherwise.
* The 'outstr' argument points to a malloc()ed string upon success.