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    <h3>Editing: StockAvailabilityException.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
namespace Automattic\WooCommerce\StoreApi\Exceptions;

/**
 * StockAvailabilityException class.
 *
 * This exception is thrown when more than one of a product that can only be purchased individually is in a cart.
 */
class StockAvailabilityException extends \Exception {
	/**
	 * Sanitized error code.
	 *
	 * @var string
	 */
	public $error_code;

	/**
	 * The name of the product that can only be purchased individually.
	 *
	 * @var string
	 */
	public $product_name;

	/**
	 * Additional error data.
	 *
	 * @var array
	 */
	public $additional_data = [];

	/**
	 * Setup exception.
	 *
	 * @param string $error_code       Machine-readable error code, e.g `woocommerce_invalid_product_id`.
	 * @param string $product_name     The name of the product that can only be purchased individually.
	 * @param array  $additional_data  Extra data (key value pairs) to expose in the error response.
	 */
	public function __construct( $error_code, $product_name, $additional_data = [] ) {
		$this-&gt;error_code      = $error_code;
		$this-&gt;product_name    = $product_name;
		$this-&gt;additional_data = array_filter( (array) $additional_data );
		parent::__construct();
	}

	/**
	 * Returns the error code.
	 *
	 * @return string
	 */
	public function getErrorCode() {
		return $this-&gt;error_code;
	}

	/**
	 * Returns additional error data.
	 *
	 * @return array
	 */
	public function getAdditionalData() {
		return $this-&gt;additional_data;
	}

	/**
	 * Returns the product name.
	 *
	 * @return string
	 */
	public function getProductName() {
		return $this-&gt;product_name;
	}

}
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