spec/im/Primitive/Container/ContainerSpec.php
public function getMatchers()
    {
        return array(

            'beInRange' => function($key, $match)
            {
                return in_array($key, $match);
            },

            'beArrayAndExactLengthOf' => function($array, $count)
            {
                return is_array($array) && $count === count($array);
            }

        );
    }
public function getMatchers()
    {
        return array(

            'beInRange' => function($key, $match)
            {
                return in_array($key, $match);
            },

            'beArrayAndExactLengthOf' => function($array, $count)
            {
                return is_array($array) && $count === count($array);
            }

        );
    }
Appends new matchers