WordPress at a glance
action is not described

admin_head action-hook . WC 1.0

Usage

add_action( 'admin_head', 'action_function_name_2128' );
function action_function_name_2128(){
	// action...
}

Where the hook is called

WC_Admin_Setup_Wizard::setup_wizard_header()
admin_head

Where in WP core the hook is used WooCommerce

woocommerce/includes/admin/class-wc-admin-exporters.php 36
add_action( 'admin_head', array( $this, 'hide_from_menus' ) );
woocommerce/includes/admin/class-wc-admin-importers.php 34
add_action( 'admin_head', array( $this, 'hide_from_menus' ) );
woocommerce/packages/woocommerce-admin/src/Features/Coupons.php 60
add_action( 'admin_head', array( $this, 'fix_coupon_menu_highlight' ), 99 );
woocommerce/packages/woocommerce-admin/src/Features/Homescreen.php 49
add_action( 'admin_head', array( $this, 'update_link_structure' ), 20 );
woocommerce/packages/woocommerce-admin/src/Loader.php 78
add_action( 'admin_head', array( __CLASS__, 'remove_notices' ) );
woocommerce/packages/woocommerce-admin/src/Loader.php 79
add_action( 'admin_head', array( __CLASS__, 'smart_app_banner' ) );
woocommerce/packages/woocommerce-admin/src/Loader.php 87
add_action( 'admin_head', array( __CLASS__, 'remove_app_entry_page_menu_item' ), 20 );