WordPress at a glance
action is not described

get_template_part action-hook . WP 5.2.0

Fires before a template part is loaded.

Usage

add_action( 'get_template_part', 'action_function_name_2972', 10, 4 );
function action_function_name_2972( $slug, $name, $templates, $args ){
	// action...
}
$slug(string)
The slug name for the generic template.
$name(string)
The name of the specialized template.
$templates(string[])
Array of template files to search for, in order.
$args(array)
Additional arguments passed to the template.

Changelog

Since 5.2.0 Introduced.
Since 5.5.0 The $args parameter was added.

Where the hook is called

get_template_part()
get_template_part
wp-includes/general-template.php 202
do_action( 'get_template_part', $slug, $name, $templates, $args );

Where in WP core the hook is used WordPress

Usage not found.