wp-admin/includes/class-wp-screen.php:682Gets the content from a contextual help sidebar.
string public function get_help_sidebar() { return $this->_help_sidebar; }Introduced in 3.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-screen.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.