}
+/**
+ * @brief libopkg API: Install package
+ * @param opkg Then opkg handler
+ * @param package_name The name of package in which is going to install
+ * @param progress_callback The callback function that report the status to caller.
+ */
int
opkg_install_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
{