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action is not described

dynamic_sidebar_after action-hook . WP 1.0

This action is documented in wp-includes/widget.php

Usage

add_action( 'dynamic_sidebar_after', 'action_function_name_6886', 10, 2 );
function action_function_name_6886( $index, $false ){
	// action...
}
$index
-
$false
-

Where the hook is called

dynamic_sidebar()
dynamic_sidebar_after
wp-includes/widgets.php 703
do_action( 'dynamic_sidebar_after', $index, false );
wp-includes/widgets.php 852
do_action( 'dynamic_sidebar_after', $index, true );

Where in WP core the hook is used WordPress

wp-includes/class-wp-customize-widgets.php 1757
add_action( 'dynamic_sidebar_after', array( $this, 'end_dynamic_sidebar' ) );