const char *kill_who_to_string(KillWho k) _const_;
KillWho kill_who_from_string(const char *s) _pure_;
-void session_mute_vt(Session *s);
+void session_prepare_vt(Session *s);
void session_restore_vt(Session *s);
bool session_is_controller(Session *s, const char *sender);