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<?php namespace Elementor\Modules\AtomicWidgets; if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly. } class Memo { private array $cache = []; public function memoize( string $key, callable $callback ) { return function() use ( $key, $callback ) { if ( array_key_exists( $key, $this->cache ) ) { return $this->cache[ $key ]; } $this->cache[ $key ] = call_user_func( $callback ); return $this->cache[ $key ]; }; } }