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1 efrain 1 
<?php
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namespace Aws;
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/**
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 * Trait implementing ToArrayInterface, \ArrayAccess, \Countable, and
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 * \IteratorAggregate
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 */
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trait HasDataTrait
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{
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    /** @var array */
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    private $data = [];
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    /**
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     * @return \Traversable
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     */
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    #[\ReturnTypeWillChange]
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    public function getIterator()
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    {
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        return new \ArrayIterator($this->data);
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    }
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    /**
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     * This method returns a reference to the variable to allow for indirect
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     * array modification (e.g., $foo['bar']['baz'] = 'qux').
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     *
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     * @param $offset
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     *
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     * @return mixed|null
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     */
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    #[\ReturnTypeWillChange]
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    public function & offsetGet($offset)
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    {
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        if (isset($this->data[$offset])) {
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            return $this->data[$offset];
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        }
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        $value = null;
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        return $value;
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    }
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    /**
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     * @return void
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     */
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    #[\ReturnTypeWillChange]
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    public function offsetSet($offset, $value)
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    {
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        $this->data[$offset] = $value;
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    }
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    /**
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     * @return bool
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     */
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    #[\ReturnTypeWillChange]
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    public function offsetExists($offset)
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    {
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        return isset($this->data[$offset]);
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    }
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    /**
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     * @return void
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     */
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    #[\ReturnTypeWillChange]
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    public function offsetUnset($offset)
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    {
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        unset($this->data[$offset]);
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    }
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    public function toArray()
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    {
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        return $this->data;
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    }
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    /**
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     * @return int
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     */
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    #[\ReturnTypeWillChange]
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    public function count()
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    {
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        return count($this->data);
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    }
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}