WordPress at Your Fingertips
action is not described

woocommerce_blocks_checkout_block_registration action-hook . WC 1.0

Also init the main checkout block so i2 is compatible with existing integrations.

Usage

add_action( 'woocommerce_blocks_checkout_block_registration', 'action_function_name_2386' );
function action_function_name_2386( $integration_registry ){
	// action...
}
$integration_registry
-

Where the hook is called

CheckoutI2::initialize()
woocommerce_blocks_checkout_block_registration
woocommerce/packages/woocommerce-blocks/src/BlockTypes/CheckoutI2.php 30
do_action( 'woocommerce_blocks_checkout_block_registration', $this->integration_registry );

Where in WP core the hook is used WooCommerce

Usage not found.