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<?php
declare(strict_types=1);
namespace loophp\combinator\Combinator;
use Closure;
use loophp\combinator\Combinator;
final class U extends Combinator
{
/**
* @suppress MissingClosureReturnType
* @suppress MissingClosureParamType
* @suppress MixedArgumentTypeCoercion
*/
public function __invoke(): Closure
return
* @param callable(callable): callable $f
*
* @return Closure(callable): mixed
static function (callable $f): Closure {
* @return mixed
static function (callable $g) use ($f) {
return $g(($f($f))($g));
};
}
loophp /
combinator
