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<?php
namespace Automattic\WooCommerce\Admin\RemoteSpecs\RuleProcessors\Transformers;
use Automattic\WooCommerce\Admin\RemoteSpecs\RuleProcessors\Transformers\TransformerInterface;
use InvalidArgumentException;
use stdClass;
/**
 * Search array value by one of its key.
 *
 * @package Automattic\WooCommerce\Admin\RemoteSpecs\RuleProcessors\Transformers
 */
class ArrayColumn implements TransformerInterface {
    /**
     * Search array value by one of its key.
     *
     * @param mixed         $value a value to transform.
     * @param stdClass|null $arguments required arguments 'key'.
     * @param string|null   $default_value default value.
     *
     * @throws InvalidArgumentException Throws when the required argument 'key' is missing.
     *
     * @return mixed
     */
    public function transform( $value, ?stdClass $arguments = null, $default_value = array() ) {
        if ( ! is_array( $value ) ) {
            return $default_value;
        }
        return array_column( $value, $arguments->key );
    }
    /**
     * Validate Transformer arguments.
     *
     * @param stdClass|null $arguments arguments to validate.
     *
     * @return mixed
     */
    public function validate( ?stdClass $arguments = null ) {
        if ( ! isset( $arguments->key ) ) {
            return false;
        }
 
 
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