-XBT_PRIVATE char* request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType type);
-
-/** Check if the given simcall is visible
- *
- * \return `TRUE` or `FALSE`
- */
-XBT_PRIVATE bool request_is_visible(smx_simcall_t req);
+XBT_PRIVATE std::string request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType type);