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<?php
namespace Codeception;

use Traversable;

class Example implements \ArrayAccess, \Countable, \IteratorAggregate
{
    protected $data;

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

#[\ReturnTypeWillChange]
 /**
 * Whether a offset exists
 * @link https://php.net/manual/en/arrayaccess.offsetexists.php
 * @param mixed $offset 
 * An offset to check for.
 * 
 * @return boolean true on success or false on failure.
 * 
 * 
 * The return value will be casted to boolean if non-boolean was returned.
 * @since 5.0.0
 */
 public function offsetExists($offset)
 {
 return array_key_exists($offset, $this->data);
 }

#[\ReturnTypeWillChange]
 /**
 * Offset to retrieve
 * @link https://php.net/manual/en/arrayaccess.offsetget.php
 * @param mixed $offset 
 * The offset to retrieve.
 * 
 * @return mixed Can return all value types.
 * @since 5.0.0
 */
 public function offsetGet($offset)
 {
 if (!$this->offsetExists($offset)) {
 throw new \PHPUnit\Framework\AssertionFailedError("Example $offset doesn't exist");
 };
 return $this->data[$offset];
 }

#[\ReturnTypeWillChange]
 /**
 * Offset to set
 * @link https://php.net/manual/en/arrayaccess.offsetset.php
 * @param mixed $offset 
 * The offset to assign the value to.
 * 
 * @param mixed $value 
 * The value to set.
 * 
 * @return void
 * @since 5.0.0
 */
 public function offsetSet($offset, $value)
 {
 $this->data[$offset] = $value;
 }

#[\ReturnTypeWillChange]
 /**
 * Offset to unset
 * @link https://php.net/manual/en/arrayaccess.offsetunset.php
 * @param mixed $offset 
 * The offset to unset.
 * 
 * @return void
 * @since 5.0.0
 */
 public function offsetUnset($offset)
 {
 unset($this->data[$offset]);
 }

#[\ReturnTypeWillChange]
 /**
 * Count elements of an object
 * @link https://php.net/manual/en/countable.count.php
 * @return int The custom count as an integer.
 * 
 * 
 * The return value is cast to an integer.
 * @since 5.1.0
 */
 public function count()
 {
 return count($this->data);
 }

#[\ReturnTypeWillChange]
 /**
 * Retrieve an external iterator
 * @link https://php.net/manual/en/iteratoraggregate.getiterator.php
 * @return Traversable An instance of an object implementing Iterator or
 * Traversable
 * @since 5.0.0
 */
 public function getIterator()
 {
 return new \ArrayIterator($this->data);
 }
}