WordPress at a glance
function is not described

Automattic\WooCommerce\Admin

Loader::smart_app_banner() public WC 1.0

Adds an iOS "Smart App Banner" for display on iOS Safari. See https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html

{} It's a method of the class: Loader{}

No Hooks.

Return

null. Nothing.

Usage

$result = Loader::smart_app_banner();

Code of Loader::smart_app_banner() WC 5.2.2

<?php
public static function smart_app_banner() {
	if ( self::is_admin_or_embed_page() ) {
		echo "
			<meta name='apple-itunes-app' content='app-id=1389130815'>
		";
	}
}