/** @brief Callback signal fired when a NetworkAction is created (when a communication starts)
* Signature: `void(NetworkAction *action, RoutingEdge *src, RoutingEdge *dst, double size, double rate)` */
/** @brief Callback signal fired when a NetworkAction is created (when a communication starts)
* Signature: `void(NetworkAction *action, RoutingEdge *src, RoutingEdge *dst, double size, double rate)` */