text: #include <elogind/sd-bus.h>
  
  int append_strings_to_message(sd_bus_message *m, const char *const *arr) {
    int r;
  
    r = sd_bus_message_open_container(m, 'a', "s");
    if (r < 0)
      return r;
  
    for (const char *s = *arr; *s; s++) {
      r = sd_bus_message_append(m, "s", s);
      if (r < 0)
        return r;
    }
  
    return sd_bus_message_close_container(m);
  }
  