Boolean.php

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<?php
namespace Magento\Framework\Data\Argument\Interpreter;

use Magento\Framework\Data\Argument\InterpreterInterface;
use Magento\Framework\Stdlib\BooleanUtils;

class Boolean implements InterpreterInterface
{
    private $booleanUtils;

    public function __construct(BooleanUtils $booleanUtils)
    {
        $this->booleanUtils = $booleanUtils;
    }

    public function evaluate(array $data)
    {
        if (!isset($data['value'])) {
            throw new \InvalidArgumentException('Boolean value is missing.');
        }
        $value = $data['value'];
        return $this->booleanUtils->toBoolean($value);
    }
}