func: void hmp_memchar_write(Monitor *mon, const QDict *qdict)
  
  {
  
      uint32_t size;
  
      const char *chardev = qdict_get_str(qdict, "device");
  
      const char *data = qdict_get_str(qdict, "data");
  
      Error *errp = NULL;
  
  
  
      size = strlen(data);
  
      qmp_memchar_write(chardev, size, data, false, 0, &errp);
  
  
  
      hmp_handle_error(mon, &errp);
  
  }
  