XBT_PUBLIC xbt_dict_t MSG_host_get_properties(sg_host_t host);
XBT_PUBLIC const char* MSG_host_get_property_value(sg_host_t host, const char* name);
XBT_PUBLIC void MSG_host_set_property_value(sg_host_t host, const char* name, const char* value);
XBT_PUBLIC xbt_dict_t MSG_host_get_properties(sg_host_t host);
XBT_PUBLIC const char* MSG_host_get_property_value(sg_host_t host, const char* name);
XBT_PUBLIC void MSG_host_set_property_value(sg_host_t host, const char* name, const char* value);