Action* communicate(s4u::Host* src, s4u::Host* dst, double size, double rate) override;
double next_occurring_event(double now) override;
void update_actions_state(double now, double delta) override;
Action* communicate(s4u::Host* src, s4u::Host* dst, double size, double rate) override;
double next_occurring_event(double now) override;
void update_actions_state(double now, double delta) override;