-class NetworkModel;
-typedef NetworkModel *NetworkModelPtr;
-
-class NetworkLink;
-typedef NetworkLink *NetworkLinkPtr;
-
-class NetworkAction;
-typedef NetworkAction *NetworkActionPtr;
-
-/*************
- * Callbacks *
- *************/
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkLink creation *
- * @details Callback functions have the following signature: `void(NetworkLinkPtr)`
- */
-extern surf_callback(void, NetworkLinkPtr) networkLinkCreatedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkLink destruction *
- * @details Callback functions have the following signature: `void(NetworkLinkPtr)`
- */
-extern surf_callback(void, NetworkLinkPtr) networkLinkDestructedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkLink State changed *
- * @details Callback functions have the following signature: `void(NetworkLinkActionPtr)`
- */
-extern surf_callback(void, NetworkLinkPtr) networkLinkStateChangedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkAction State changed *
- * @details Callback functions have the following signature: `void(NetworkActionPtr)`
- */
-extern surf_callback(void, NetworkActionPtr) networkActionStateChangedCallbacks;
-
-/*********
- * Tools *
- *********/
-
-void net_define_callbacks(void);