GDBusConnection *_bt_gdbus_get_system_gconn(void);
-GDBusConnection *_bt_gdbus_init_session_gconn(void);
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-GDBusConnection *_bt_gdbus_get_session_gconn(void);
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GVariant *_bt_get_managed_objects(void);
void _bt_convert_device_path_to_address(const char *device_path,