wp-includes/blocks/template-part.php:290Registers the core/template-part block on the server.
function register_block_core_template_part() { register_block_type_from_metadata( __DIR__ . '/template-part', array( 'render_callback' => 'render_block_core_template_part', 'variation_callback' => 'build_template_part_block_variations', ) );}Introduced in 5.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/blocks/template-part.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.